CARDIFF COUNCIL FITZALAN HIGH SCHOOL BAT REPORT - … · This report has been prepared by Wardell Armstrong L LP with all reasonable skill, care and diligence, within the terms of

CARDIFF COUNCIL

FITZALAN HIGH SCHOOL BAT REPORT - INTERIM SEPTEMBER 2019

Wardell Armstrong Tudor House, 16 Cathedral Road, Cardiff, CF11 9LJ, United Kingdom Telephone: +44 (0)29 2072 9191 www.wardell-armstrong.com

Wardell Armstrong is the trading name of Wardell Armstrong LLP, Registered in England No. OC307138.

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ENERGY AND CLIMATE CHANGE ENVIRONMENT AND SUSTAINABILITY

INFRASTRUCTURE AND UTILITIES LAND AND PROPERTY

MINING AND MINERAL PROCESSING MINERAL ESTATES

WASTE RESOURCE MANAGEMENT

DATE ISSUED: SEPTEMBER 2019 JOB NUMBER: CA11611 REPORT NUMBER: 001 VERSION: STATUS:

V2.0 FINAL

CARDIFF COUNCIL FITZALAN HIGH SCHOOL BAT REPORT - INTERIM SEPTEMBER 2019 PREPARED BY:

Kate Wise Ecologist

Tania Smith Ecologist

Clare Wheeler Ecologist

REVIEWED & APPROVED BY:

Alison Bennett Technical Director

This report has been prepared by Wardell Armstrong LLP with all reasonable skill, care and diligence, within the terms of the Contract with the Client. The report is confidential to the Client and Wardell Armstrong LLP accepts no responsibility of whatever nature to third

parties to whom this report may be made known.

No part of this document may be reproduced without the prior written approval of Wardell Armstrong LLP.

CARDIFF COUNCIL FITZALAN HIGH SCHOOL BAT REPORT - INTERIM

CA11611/001/FINAL SEPTEMBER 2019

CONTENTS EXECUTIVE SUMMARY.................................................................................................................... 1

1 INTRODUCTION ...................................................................................................................... 3

2 METHODOLOGY ...................................................................................................................... 5

3 RESULTS................................................................................................................................. 10

4 EVALUATION ......................................................................................................................... 17

5 RECOMMENDATIONS ........................................................................................................... 18

6 ENHANCEMENTS .................................................................................................................. 20

APPENDICES Appendix 1 Mott MacDonald 2018 – Technical Note Appendix 2 Mott MacDonald 2018 – Phase One Habitat Map Appendix 3 Summary of Protection Legislation Appendix 4 Building Descriptions and Photographs Appendix 5 Bat Surveys 2019 – Dates/Times/Weather Conditions Appendix 6 Automated Detector BAI Tables Appendix 7 Determining Value of Ecological Receptors DRAWINGS TITLE SCALE

CA11611-001 Site Location Plan 1:25,000 @ A4 CA11611-004 Building and Surveyor Locations 1:1,250 @ A3 CA11611-005 Automated Detector Locations 1:3,000 @ A3 CA11611-006 May 2019 Bat Activity Plan 1:3,000 @ A3 CA11611-007 June 2019 Bat Activity Plan 1:3,000 @ A3 CA11611-008 July 2019 Dusk Bat Activity Plan 1:3,000 @ A3 CA11611-009 July 2019 Dawn Bat Activity Plan 1:3,000 @ A3



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EXECUTIVE SUMMARY

Wardell Armstrong LLP (WA) was commissioned by Cardiff Council to carry out bat surveys at a site that will accommodate the new Fitzalan High School hereafter referred to as the ‘site’, which is located at approximate National Grid Reference ST 1589 7579. This interim report details the results of the bat surveys undertaken at the site between May and July 2019.

The site comprises of sports buildings with associated playing fields, vegetation boundaries and woodland/scrub habitat to the west. Proposals include a new high school, sports pitches, SUDS ponds and associated infrastructure and parking.

An Extended Phase 1 Habitat survey of the site was carried out by Mott MacDonald in October 2018, the results of which are presented in a Technical Note. This Technical Note identified that further surveys were considered necessary to assess the potential of Buildings TN5 and TN2 to support roosting bats. The Technical Note also identified that the habitats on site are of moderate potential to support foraging and commuting bats and further surveys were recommended. A data search carried out as part of the Technical Note identified a lesser horseshoe (Rhinolophus hipposideros) bat roost approximately 20m west of the site boundary, in Leckwith Woods Viaduct. At least 8 other bat species have also been recorded within 2km.

A Preliminary Roost Assessment (PRA) was carried out on Buildings TN2 and TN5 by Wardell Armstrong in May 2019 which identified TN5 to be of moderate potential and TN2 to be of low potential for supporting roosting bats. Emergence / re-entry surveys were carried out in June and July 2019 which did not identify roosting bats in either building.

Current best practice guidelines recommend that one visit per transect per month is undertaken between April and October during suitable weather conditions with at least one of these comprising and dusk and dawn survey within the same 24hr period. April and October are sub-optimal months for bat activity and in agreement with the County Ecologist, surveys during these months were not required. Additionally, four automated bat detectors were deployed per month.

Soprano pipistrelle (Pipistrellus pygmaeus), common pipistrelle (Pipistrellus pipistrellus), Nathusius’ pipistrelle (Pipistrellus nathusii) and noctule (Nyctalus Noctula) were recorded during the walked transect surveys. The majority of calls recorded were soprano and common pipistrelles, a low number of noctules were recorded on every survey and only a single Nathusius’ call was recorded. Soprano and common pipistrelles were identified



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foraging and commuting along the woodland edges and around buildings. No bats were identified foraging/commuting within open playing fields. No obvious foraging/commuting pattern was identified during the walked transects surveys, it is assumed that the majority of foraging and commuting on-site is by opportunistic bats.

The automated detectors recorded at least 9 species across the site in 2019, including; soprano, common and Nathusius’ pipistrelle, noctule, lesser horseshoe, Leisler’s (Nyctalus leisleri), serotine (Eptesicus serotinus), long-eared sp. (Plecotus spp.) and Myotis sp. of bats.

All nine species were recorded at Location 1 (west woodlands/scrub) and at Location 2 (southern end of the central woodland corridor). Six species were recorded at Location 3 (center of the central woodland corridor) and four species were recorded at Location 4 (east boundary). The highest amount of calls were recorded at Location 2 and Location 3, follow by Location 1 and the fewest calls recorded at Location 4.

Survey results to date suggest that the southwest tree line between Location 1 and Location 2 is used by a high diversity of bat species as an extension of the Leckwith Woods, which provides excelled bat habitat. Location 3 had a high number of calls but a lower diversity of species, however this central woodland corridor is considered to be an important foraging/commuting corridor for common and soprano pipistrelles linking residential houses further north to Leckwith Wood. The low number of total calls and low diversity of species at Location 4 is considered to be due to its isolation from other further suitable habitat.

It is recommended that the southwest woodland corridor along the A4232 and Ely River is retained and protected to prevent disturbance to the known lesser horseshoe roost and to maintain foraging and commuting corridors for bats.

It is also recommended that the central woodland corridor is retained and protected to prevent habitat fragmentation and maintain this foraging and commuting corridor. Other recommendations include habitat creation, sensitive lighting schemes for the construction and operational phases, toolbox talk and the erection of tree protection fencing. Enhancement measures will include the erection of bat boxes within habitats to be retained and additional planting of native trees.



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1 INTRODUCTION

1.1 Introduction

1.1.1 Wardell Armstrong LLP (WA) was commissioned by Cardiff Council to undertake bat surveys at a site that will accommodate the new Fitzalan High School, Leckwith, Cardiff, centred on approximate National Grid Reference ST 1589 7579. The location and boundary of the site is shown on Drawing CA11611-001 Site Location Plan.

1.2 Background

1.2.1 An Extended Phase 1 Habitat survey of the site was carried out by Mott MacDonald in October 2018 and the findings provided in a Technical Note, supported by a habitat plan. A copy of these documents is provided in Appendix 1 and 2.

1.2.2 In conjunction with this Extended Phase 1 Habitat survey, records for bats within 2km of the site was obtained from the South East Wales Biodiversity Records Centre (SEWBReC) which identified a lesser horseshoe roost approximately 20m west of the site boundary, in Leckwith Woods Viaduct, where the A4232 crosses the River Ely. The peak count of lesser horseshoes at this roost site was for nine individuals between 2009-2012. Further lesser horseshoe roosts have been recorded 280m south-west of the site within Leckwith Woods, and lesser horseshoe activity has been recorded 850m north-west of the site in a residential area. A number of records for common and soprano pipistrelles are concentrated within the residential area located north of the site. The nearest records are located northeast, northwest and south of the site in Leckwith Woods. At least 8 bat species have been recorded within 2km including Daubenton’s (Myotis daubentonii), brown long-eared (Plecotus auratus), common pipistrelle, soprano pipistrelle, Nathusius’ pipistrelle, noctule, lesser horseshoe and Myotis sp.

1.2.3 The survey identified two buildings TN2 (Changing Rooms) and TN5 (Canton RFC) on site and recommended further surveys to assess their suitability for roosting bats.

1.2.4 The survey also identified the habitats on-site to be of moderate suitability for foraging / commuting bats and further activity were recommended.

1.3 Site Description

1.3.1 The site mainly comprises of amenity grassland playing fields and sports buildings. Located centrally, adjacent to the northern site boundary is Ysgol Gymraeg Pwll Coch primary school. Within the eastern part of the site is a large sports dome and playing



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fields, whilst Cardiff International Sports Campus is located south of the site. The west of the site is dominated by playing fields and woodland.

1.4 Description of Development

1.4.1 We understand that two planning applications will be submitted in connection with the proposed development. One for the enabling works which includes the relocation of the Air Dome, new sports areas and erection of changing rooms and one for the main works which includes the construction of a new 3 storey school building and single storey swimming pool building, all weather sports pitches and associated parking, infrastructure and SUDS ponds.

1.5 Legislative Framework

1.5.1 All UK bat species are protected by legislative framework, a summary of which is provided in Appendix 3.

1.6 Scope of Report

1.6.1 The purpose of this report is to detail the results of the bat surveys and provide an assessment of bat activity within the site, an evaluation of the species and bat assemblages present and to provide recommendations to aid future development proposals. This report, therefore, includes:

• Description of survey and assessment methodology;

• Results of the May – July 2019 bat surveys at the site;

• An Evaluation of the site in terms of its value for bats and the value of the bat populations using the site;

• Recommended mitigation measures; and

• Recommended enhancements for bats.



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2 METHODOLOGY

2.1 Preliminary Roost Assessment (PRA) - Buildings

2.1.1 A Preliminary Roost Assessment (PRA) was undertaken of TN5 and TN2 on 30th May 2019 by a suitably experienced ecologist. The aim of this survey was to assess the potential for bats to be present, search for evidence of roosting bats and establish the requirement for further surveys. The locations of these buildings are shown on Drawing Number CA11611-004 Building and Surveyor Locations 2019.

2.1.2 An external and internal inspection of TN2 was undertaken however only an external inspection of TN5 could be carried out. Field signs such as spider webs over crevices, urine stains, grease stains, droppings, feeding remains and dead or living bats were recorded in addition to the identification of additional external features such as cracks, crevices and gaps that could provide access opportunities within the buildings for roosting bats. Equipment used included torch and binoculars.

2.1.3 The buildings were categorised using the assessment criteria in Table 4.1 of the 3rd ed. of the BCT Guidelines (Collins, 2016):

• Known or confirmed roost.

• High: Structure or tree with one or more potential roost sites that are obviously suitable for use by larger numbers of bats on a more regular basis and potentially for longer periods of time due to their size, shelter, protection, conditions and surrounding habitats.

• Moderate: Structure or tree with one or more potential roost sites that could be used by numbers of bats due to their size, shelter, protection, conditions and surrounding habitats, but unlikely to support a roost of high conservation concern.

• Low: Structure or tree with one or more potential roost sites that could be used by individual bats opportunistically. However, these potential roost sites do not provide enough space, shelter, protection, appropriate conditions and/or suitable surrounding habitat to be used on a regular basis or by larger numbers of bats (i.e. unlikely to be suitable for maternity or hibernation).

• Negligible: Structure or tree with no potential to support bats.

2.2 Preliminary Roost Assessment (PRA) - Trees

2.2.1 Only the proposed CAVC senior football pitch area is likely to impact upon trees and on review of the habitat plan produced by Mott Macdonald, no trees are present in



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the location of this pitch. Consequently, no trees are likely to be subject to direct impacts (i.e. trees that are being felled or subject to surgery works) and therefore no further surveys in relation to bat roosts were undertaken.

2.3 Emergence / Re-entry Surveys

2.3.1 Following the PRA undertaken in May 2019, TN5 was categorised as having moderate bat roost potential and was subject to one dusk emergence and one separate dawn re-entry survey. TN2 was categorised as having low bat roost potential and was subject to one dusk emergence survey. The aim of the surveys was to establish if roosts were present in the buildings and, if so, to establish the type of roost and bat species using the roost. The survey effort undertaken at the building is based on the guidance given in Table 7.3 of the ‘Bat Surveys for Professional Ecologists: Good Practice Guidelines’ (Collins, J. (ed.) 2016).

2.3.2 The dusk emergence surveys were undertaken from 15 minutes before sunset to 1.5 to 2hrs hours after sunset. The dawn re-entry surveys were undertaken 2 - 1.5 hours before sunrise and continued to 15 minutes after sunrise. Weather conditions and times of the emergence and re-entry surveys are provided in Appendix 3.

2.3.3 Echo Meter Touch (Wildlife Acoustics, Inc., Massachusetts) bat detectors and iPads (Apple Inc., California) are used by surveyors to detect bats. Observations of bat behaviour, size and the direction of the flight path were also noted where possible.

2.4 Activity Surveys

Walked transect surveys

2.4.1 Based on the Technical Note prepared by Mott MacDonald in 2018, the habitats within the site were categorised as being of ‘moderate’ suitability for bats. Current best practice guidelines (Collins, J. (ed.) 2016) recommend that for sites of ‘moderate’ suitability, one visit per transect per month is undertaken between April and October during suitable weather conditions with at least one of these comprising and dusk and dawn survey within the same 24hr period. April and October are sub-optimal months for bat activity and was agreed with the County Ecologist, that surveys during these months were not required. Only surveys in May, June and July have been completed at the time of writing this report. The results of the August and September surveys will be submitted as an addendum to this report.

2.4.2 Each transect was walked by two surveyors over the site to allow complete coverage with occasional listening stops. Each listening stop lasted approximately five minutes.



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2.4.3 Date, times and weather conditions during the surveys are provided in Appendix 3.

2.4.4 Echo Meter Touch (Wildlife Acoustics, Inc., Massachusetts) bat detectors and iPads (Apple Inc., California) were used to detect foraging or commuting bats and the built-in Kaleidoscope classifiers were used to assist species identification. Observations of bat behaviour, size and the direction of the flight path were also noted where possible.

Automated survey

2.4.5 To supplement the walked transect survey, four Sound Meter SM2BAT+ Bioacoustics Recorder (SM2) or SM4BAT+ Bioacoustics Recorder (Wildlife Acoustics, Inc.) were deployed per survey. The detectors were programmed to record ultrasound continuously from 30 minutes before local sunset to 30 minutes after local sunrise for five consecutive nights. The locations of the automated bat detectors are shown on Drawing Number CA11611-005 –Automated Detector Plan.

2.4.6 After retrieval of the recording devices the data files were downloaded as Wildlife Acoustic Audio Compression Files (WAC) and converted to Kaleidoscope Pro 4 Output files and analysed using Kaleidoscope Pro 4 analysis software (Wildlife Acoustics, Inc).

2.4.7 Bat Activity Index (BAI) values were calculated for each species recorded at each automated detector location. These indices are calculated by taking the mean nightly pass rates for the automated survey data over the period of their deployment.

2.5 Assessment Limitations

2.5.1 Internal access into TN5 was not possible during the PRA. Access into the roof void of TN2 was not possible because the loft hatch is nailed shut. There was limited external access to the north elevation of TN2 due to dense vegetation and there was limited access to the external north elevation of TN5 because the gates are locked.

2.5.2 Security lights on the eastern and southern aspects of the TN5 were switched on during the dusk emergence and dawn re-entry surveys, which reduced visibility for surveyors. Whilst the presence of lighting may affect the suitability of the building for roosting, it is unlikely that this would have affected the survey results.

2.5.3 It wasn’t possible to survey the north elevation of TN2 during the emergence survey due to dense vegetation restricting visibility. Bats are less likely to use a roost that had a restricted flight path and therefore it is unlikely that this will affect the survey results.

2.5.4 The dawn re-entry survey undertaken at TN5 on 19.07.19 was abandoned after approximately 1 hour of surveying due light rainfall starting 30 minutes into the survey



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and becoming heavy an hour into the survey. This survey was rescheduled for the following week.

2.5.5 Access was not achieved during the activity surveys along the south-western boundary of the site, which connects the central woodland strip to the woodland in the west due to dense vegetation. However, this corridor is located between two other deployed static detectors (Location 1 and 2) which have provided bat activity data for either end of this feature and therefore provide an indication of the use of this feature by foraging / commuting bats.

2.5.6 The automated detector at location 4 in June failed. However, data from the other two months still suggests that Location 4 has lower bat activity compared with the other 3 locations.

2.5.7 The automated detector at location 3 in July recorded 24 bat calls which is significantly lower compared with the previous two months. The cause of this unusual result is unknown but given the results of the previous months it is considered unlikely that this is due to low bat activity at the location in July.

2.5.8 The bat surveys have not attempted to produce a comprehensive list of all bat species and their activities within the site, as any ecological survey will be limited by factors that affect their presence, such as time of year, weather conditions, migration pattern and behaviour. The surveys instead aim to provide a general overview of the range of bat species using the site and to highlight key commuting corridors and pinpoint possible bat roosts.

2.5.9 Echolocation calls of the brown long-eared bats (Plecotus auritus) are significantly quieter than many other bat species within this country, therefore this species can be difficult to record and may at times go unrecorded. Similarly, some bats produce louder calls which travel greater distances with less attenuation, as a result louder calls produced at greater distances from the detectors will be recorded (during activity and automated surveys) more readily whereas quieter calls produced from the same location maybe missed which can lead to bias.

2.5.10 Species from the genera Myotis and Nyctalus are difficult to distinguish to individual species from sonogram calls alone. Where an individual species cannot be determined, a genus is recorded.



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2.6 Quality Assurance & Environmental Management

2.6.1 The surveys and assessments have been overseen by and the report checked and verified by a member of CIEEM and thus bound by its code of professional conduct. All surveys and assessments have been undertaken with reference to the recommendations given in British Standard (BS) 42020, and as stated within specialist guidance, as appropriate and referenced separately.



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3 RESULTS

3.1 PRA - Buildings

TN5

3.1.1 TN5 contains a number of gaps identified on the east, south and west elevations including gaps under soffits, in the apex, under roof tiles and through vents. The central woodland corridor provides emergence cover for bats and connectivity to wider foraging habitat. This building was therefore classified as having ‘moderate’ potential to support roosting bats. The description of TN5 and photographs are provided in Appendix 2 - Building Descriptions and Photographs.

TN2

3.1.2 TN2 exhibited gaps in the soffits and under the roof ridge, however emergence cover and connectivity for bats in the form of vegetation is poor. This building was therefore classified as having ‘low’ potential to support roosting bats. The description of TN2 and photographs are provided in Appendix 2 - Building Descriptions and Photographs.

3.2 Bat Roost Survey – Buildings

3.2.1 The building locations and the location of surveyors for each survey are shown on CA11611-004 Building and Surveyor Location. The weather conditions and times of the building surveys are provided in Appendix 3.

TN5

Dusk Emergence Survey – 06.06.19

3.2.2 No bats were recorded emerging from TN5 during the dusk survey however common, soprano and Nathusius’ pipistrelle, and noctule were observed foraging and commuting in the vicinity of the building during the survey. The majority of calls were common pipistrelle, with frequent soprano pipistrelle and noctule, two passes of Nathusius’ pipistrelle were recorded along the southeast corner. The majority of activity was recorded along the woodland to the west of the building, where continuous foraging and commuting activity was recorded between 21:49 and 22:26 (approximately 24 minutes to 1 hour and 1 minute after sunset), common and soprano pipistrelle social calls were frequently recorded. Surveyors positioned on the northwest and southwest corners observed the noctule commuting north-west to south-east around the building.



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Dawn Re-entry Survey – 19.07.19

3.2.3 The dawn survey was called off at 4.50am due to un-forecast heavy rain. Prior to the rain noctules, common pipistrelles and soprano pipistrelles were all recorded foraging and commuting in the vicinity of the building.

Dawn Re-entry Survey – 26.07.19

3.2.4 No bats were recorded re-entering the building during the dawn survey however common and soprano pipistrelle and noctule were recorded foraging and commuting in the vicinity of the building during the survey. The majority of calls were common pipistrelle, with frequent soprano pipistrelle and a single noctule call.

3.2.5 A bird species (possible swallow) was observed emerging from the northern aspect of the building, near the north-western corner.

TN2

Dusk Emergence Survey – 25.07.19

3.2.6 No bats were recorded emerging from TN2 during the dusk survey however common and soprano pipistrelle, and noctule were observed foraging and commuting in the vicinity of the building during the survey. The majority of calls were common pipistrelle and soprano pipistrelle, with three passes of noctule recorded by both surveyors.

3.2.7 The security lights, which are on during the hours of darkness during the surveys, located on the northeast and southwest of TN5 and the artificial light spill from Lawrenny Road illuminating the north elevations of both buildings could be responsible, at least in part, for deterring bats from roosting in these buildings.

3.3 Activity Surveys

3.3.1 Overall, at least nine of the 17 British breeding species were recorded within the site during the activity surveys and were identified to species level during the surveys. Locations of bats recorded during the walked transects are shown on Drawing Numbers CA11611/006-009.

3.3.2 Species present during the 2019 bat activity per month are summarised in Table 1 below.



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Table 1: Species present during the 2019 bat activity and automated detector surveys per month. Ticks (✔) represent species recorded that month and (-) were not recorded.

Species Month

May June July Common pipistrelle ✔ ✔ ✔

Soprano pipistrelle ✔ ✔ ✔

Nathusius’ pipistrelle ✔2 ✔ ✔2

Myotis sp. ✔2 ✔2 ✔2

Leisler’s ✔2 ✔2 ✔2

Noctule ✔ ✔ ✔

Lesser horseshoe ✔2 ✔2

Serotine ✔2

Long-eared sp. ✔2

1 This species was only recorded during bat activity surveys.

2 This species was only recorded during automated detector surveys.

3.3.3 As shown in Table 1, six of the nine species on site were recorded consistently during the entire survey period. Lesser horseshoe bats were recorded in May and June during only the automated detector surveys and serotine and long-eared sp. were only recorded in July during the automated detector surveys and only at detector locations 1 and 2.

3.4 Walked Transect Survey Results

3.4.1 The majority of the activity during 2019 was associated with the woodland to the west of the site and the linear features along the north, east and southern boundaries of the site, and along the central woodland strip. There was a low level of activity bordering the east and west of Gôl Centres Ltd Playing fields, south of the dome and within open playing fields.

3.4.2 Of the four species recorded during the activity surveys, common and soprano pipistrelles and noctule was recorded every month, whereas a single Nathusius’ pipistrelle call was recorded once in June.

3.4.3 Soprano and common pipistrelle foraging activity was identified within or along woodland edges. No clear commuting corridor was identified by these two species and recordings were random across the site but primarily identified along vegetation boundaries. There was no clear pattern to the locations where noctules were recorded. The single Nathusius’ pipistrelle call was recorded along the east border of Gôl Centres Ltd Playing fields.



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3.5 Automated Detector Results

3.5.1 The locations of the automated detectors are shown on Drawing Number CA11611-005 Automated Detector Location Plan.

3.5.2 A summary of activity recorded on the automated detectors and how it varies over the months is provided in Table 2 below.

Table 2: Total Calls Recorded Per Automated Detector and Per Month Month Automated Detector Number Total calls/month

1 2 3 4 Total calls per automated detector

May 263 409 1299 194 2165

June 211 370 738 0 1319

July 433 1156 24 337 1950

Total calls /location

907 1935 2061 531

3.5.3 The majority of calls recorded during the automated detector surveys were at Location 3 (37.93%) and Location 2 (35.61%), followed by Location 1 (16.69%), with the lowest amount of activity recorded at Location 4 (9.77%) (Figure 1).

Species

3.5.4 Site Bat Activity Index (BAI) values have been calculated for each species that were recorded in 2019 at each automated detector location. The BAI for each automated detector per month are provided in Appendix 4.

3.5.5 Soprano pipistrelle were the most frequently recorded species within the site accounting for 69.29% of automated detector calls between May - July. Common pipistrelles were the second most frequent (26.30%) followed by noctule (3.18%). All other species recorded account for 1.23% of all remaining calls (Figure 2).



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16.69%

35.61%

37.93%

9.77%

Location 1 Location 2 Location 3 Location 4

1%0%3%0%

27%

69%

0%0%0%

Myotis sp. Leisler's Noctule

Nathusius' pipistrelle Common pipistrelle Soprano pipistrelle

Lesser horseshoe Serotine Long-eared sp.

Figure 2. Total Percentage of species recorded on site during automated detector surveys (May-July)

Figure 1. Total Percentage of Calls recorded at each automated detector location (May-July)



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3.5.6 All nine bat species identified were recorded at detector locations 1 and 2, within the woodland to the west and along the southern boundaries of the site. Six species excluding Leisler’s, serotine and long-eared sp. were recorded at detector location 3, along the centre of the central woodland corridor. Common, soprano and Nathusius’ pipistrelle, and Myotis sp. were the only species recorded at detector location 4, located along the eastern boundary treeline (Figure 3).

3.5.7 At Location 1, at least 9 species were recorded, including soprano (55.24%) and common (31.09%) pipistrelle, noctule (9.92%), Myotis sp. (2.43%), Leisler’s (0.44%), serotine (0.44%), Nathusius’ pipistrelle (0.22%), long-eared sp. (0.11%) and lesser horseshoe (0.11%).

3.5.8 At Location 2, at least 9 species were recorded, including soprano (91.11%) and common (5.53%) pipistrelle, noctule (1.96%), Myotis sp. (0.57%), Leisler’s (0.52), Nathusius’ pipistrelle (0.16%), lesser horseshoe (0.10%), serotine (0.05%) and long-eared sp. (0.05%).

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Myotis sp. Leisler's Noctule Nathusius'pipistrelle

Commonpipistrelle

Sopranopipistrelle

Lesserhorseshoe

Serotine Long-eared sp.

Perc

enta

ge (%

)

Species

Location 1 Location 2 Location 3 Location 4

Figure 3. Total Percentage of species recorded per automated detector location (May-July)



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3.5.9 At Location 3, at least 6 different species were recorded, including soprano (61.28%) and common pipistrelles (36.39%), noctule (2.2%), lesser horseshoe (0.05%), Nathusius’ pipistrelle (0.05%) and Myotis sp (0.05%).

3.5.10 At Location 4, at least 4 different species were recorded, including common (54.61%), soprano (44.82%) and Nathusius’ pipistrelles (0.56%) and Myotis sp (0.19%).



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4 EVALUATION

4.1.1 The criteria of determining the value of ecological receptors is provided in Appendix 7.

4.1.2 Bats are protected under European and national legislation. Such protection is relevant to the assignment of value to such species, but additional factors, such as population size and the nature of the distribution of the species are also considered. These factors affect the value of species. Based on the results so far, overall, bat species diversity on the site is considered to be high supporting at least 9 of the 17 British resident species.

4.1.3 The majority of bat activity comprised that of common and widespread species specifically soprano pipistrelle, accounting for 69% of the activity and common pipistrelle, accounting for 27% of the activity within the site. The highest activity levels for these species was identified along the central woodland corridor. Given the upward trend in the British populations of common and soprano pipistrelle bats as well as the availability of higher quality habitat within the wider landscape, these species are considered to be of local nature conservation value based on current survey results.

4.1.4 Noctule was the third most recorded species, accounting for 3% of calls during the automated detectors surveys. Noctules were also occasionally recorded during the walked transect surveys. Given that noctule is relatively common and widespread in Wales, this species is considered to be of local nature conservation value based on current survey results.

4.1.5 Nathusius’ pipistrelle and species of myotis were recorded in low numbers at all four locations during the automated detector survey. Despite these species being ‘rarer’ within Wales, the level of activity observed on site by these species was low, therefore, it is considered that this species is of local nature conservation value based on current survey results.

4.1.1 Lesser horseshoe, Leisler’s, serotine and long-eared sp. were recorded in low numbers at Location 1 and Location 2 during the automated detector survey. The southwest woodland between Location 1 and Location 2 is an extension of Leckwith Woods which provides excellent habitat for these species. Despite these species being ‘rarer’ within Wales, the level of activity observed on site by these species was low, therefore, it is considered that these species are of local nature conservation value based on current survey results.



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5 RECOMMENDATIONS

5.1.1 Bats are a legally protected species under the Wildlife and Countryside Act 1981 (WCA) and the Conservation of Habitats and Species Regulations 2018. They are also listed as a Section 7 species on the Environment (Wales) Act 2016. Further assessment is therefore required to assess the effects of the proposed development on them and determine whether or not construction and operational phase activities have the potential to contravene legislation pertaining to bats.

Buildings and Trees

5.1.2 Bats were not identified roosting in the TN5 or TN2 therefore a licence from Natural Resources Wales (NRW) is not required to carry out works to these buildings. The building and trees will continue to offer potential for roosting bats therefore a pre-clearance check of the building for roosting bats is recommended, with further surveys being undertaken if necessary. If more than 24 months have lapsed since the time of the surveys, update PRA and emergence / re-entry surveys are recommended.

5.1.3 Prior to any felling or tree surgery as part of the development, trees will need to be assessed for their bat roost potential and further surveys undertaken if necessary.

Foraging and Commuting Activity

5.1.4 Vegetation clearance and the installation of additional lighting around the site as part of the proposed development has the potential to result in the damage, loss and isolation of habitat used by bats for foraging and commuting, thus affecting connectivity and the movement of bats.

5.1.5 It is recommended that woodland habitat along the south west boundary, adjacent to the A4232 and the central woodland corridor is retained and protected as part of the development proposals. Retained hedgerows and trees should be protected from development and ingress from construction machinery in accordance with BS 5837:2012 Trees in relation to design, demolition and construction.

5.1.6 If loss of woodland habitat cannot be avoided creation of similar habitat in a suitable location elsewhere on site is likely to be required.

5.1.7 A sensitive lighting scheme may be required for the site which should be designed by a lighting professional with input from an ecologist and with reference to the IJP and



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BCT guidelines on Bats and Artificial Lighting1. Dark corridors should be incorporated, to maintain connectivity for bats across the site and to adjoining habitats off site.

5.1.8 This report will remain valid for a period of 2-years from the date of the surveys. If the proposed site works have not commenced within this timeframe it will be essential to update the survey effort.

1 Bat Conservation Trust & Institute of Lighting Professionals (2018) Bats and Artificial Lighting in the UK. Guidance Note 08/18.



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6 ENHANCEMENTS

6.1.1 In accordance with the requirements of the Planning Policy Wales and BSI 42020:2013, ecological enhancements should be proposed which will result in a net gain in biodiversity.

6.1.2 Bat boxes could be erected on appropriate trees within areas of retained habitat such as the retained southwest treeline to enhance bat roosting habitat. These should include a mix of Schwegler 1FF, Schwegler 2F and Schwegler 2FN (or equivalent) Which will target pipistrelle species and noctule which are more likely to use the boxes post-construction.

6.1.3 Management of existing habitats or the creation of additional habitat on site could also be incorporated into the development design which would enhance the site for foraging / commuting bats.



Appendix 1 Mott MacDonald 2018 – Technical Note

Technical Note

Project: Fitzalan School

Our reference: 380206/FTZ/REP/003 Your reference:

Prepared by: Alex Morley Date: 7 November 2018

Approved by: C Williams Checked by: Katie Partington

Subject: Fitzalan Secondary School Preliminary Ecological Appraisal

1 Executive Summary

Cardiff Council are investigating options for constructing new schools to replace existing schools needing extensive maintenance / refurbishment / demolition and reconstruction work. This study considers options for the Fitzalan Secondary School. The report identifies ecological constraints that may be present on the site which will inform decisions to build a new school.

The key constraints considered arise from any potential legacy of contamination from previous development, and the ground conditions in relation to foundation design.

Constraints have been assessed in terms of their significance using a traffic light system. This summarises potential constraints to enable an assessment of the cost implications for each site to be assessed.

Table 1: Summary of Site Constraints

Discipline Constraint

Ecology – invasive species

Japanese knotweed, Himalayan balsam and cotoneaster are present on site. Construction works must take account of these and not cause the further spread of these plants onto adjacent land.

Ecology – protected species

Bats - the mature trees and nearby buildings could support roosting bats and will require further inspection for their potential to be used as bat roosts. This can be undertaken at any time of year however trees are best surveyed in winter when the canopy is absent of leaves Any activity surveys and roost surveys that are required based on the outcome of building and tree assessments can be undertaken from May to September. If roosting bats are found to be affected by the development works, then a development licence will need to be obtained from Natural Resources Wales. This application could take up to 6 weeks or 30 working days from submission to NRW (following grant of planning permission). Reptiles – the complex habitat to the west of the site provides a particularly good habitat for reptiles with areas of standing water and areas suitable for basking on exposed, stony spoil heaps, bordered by dense scrub. Slow worms have been recorded in this area in 2014. The woodlands and scrub bordering the site and along the central dry ditch also provide suitable habitat for reptiles. Reptile surveys would be required to ascertain what reptiles are present within the footprint of the proposed development works or it may be possible to assume presence of reptiles across the site, to be agreed with the Council’s ecologist. If surveys are required then they will need to be undertaken between the months of March to June or September and October. Discussion with the Council’s ecologist is recommended to agree the scope of reptile surveys and any mitigation measures. Reptiles are protected and in order to safeguard any population on site a reptile translocation may be required which should be undertaken in the same period as surveys whilst reptiles are active. Great crested newts - although no records of great crested newts were identified within 2km of the proposed site, it is recommended that habitat suitability index (HSI) surveys be carried out on the small areas of standing water to the west of the site to ascertain their potential to support great crested newts. It would also be worth assessing the state of the ditches around the site to check that they remain dry and carrying out HSI surveys on

This document is issued for the party which commissioned it and for specific purposes connected with the above-captioned project only. It should not be relied upon by any other party or used for any other purpose.

We accept no responsibility for the consequences of this document being relied upon by any other party, or being used for any other purpose, or containing any error or omission which is due to an error or omission in data supplied to us by other parties.

This document contains confidential information and proprietary intellectual property. It should not be shown to other parties without

consent from us and from the party which commissioned it.

Mott MacDonald Fitzalan Secondary School – Preliminary Ecological Appraisal>

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Discipline Constraint

any wet ditches observed. Depending on the result of the HSI surveys, further presence and absence surveys may be required. Hazel dormice - although no records were identified from the biological records data, the scrub and woodland areas described, particularly in the south, the south west and along the central dry drainage ditch woodland, have the potential to support populations of hazel dormice (Muscardinus avellanarius). These areas all fall within the development footprint. Surveys may be required to establish whether the development area contains any populations of hazel dormice, to be agreed with NRW and the Council’s ecologist. Surveys can be undertaken over winter to search for gnawed hazelnuts which can prove presence but not absence. Further surveys between April and September using nest tubes would then be required to fully establish whether dormice are using the site. If evidence of dormice presence is found, then a European protected species development licence may be required. This application could take up to 6 weeks or 30 working days from submission to NRW (following grant of planning permission). Badgers - no setts or evidence of badgers were identified during the constraints walkover and the records did not identify any setts within 2km. The woodland, scrub areas and ditches with associated dense vegetation, provide suitable habitat for badgers. It is recommended that 8 weeks before construction, a walkover survey is carried out to ascertain whether the proposed works would affect any badger setts that had become established in the habitats identified above. Otter - the proposed CAVC throwing area comes to within 30m of the River Ely at its closest point. Otter spraints have been recorded within 1km on the River Ely. It is recommended that further surveys be carried out to look for holts and resting areas where the proposed development comes to within 30m of the River Ely. This can be undertaken at any time of year

Ecology – Breeding Birds

Breeding birds are likely to be found within the trees and scrub during the breeding season. Any vegetation removal will need to be timed to avoid the breeding season, which is generally considered to be March to August inclusive. If works are proposed within this period, a nesting bird survey by an experienced ecologist will be necessary.

Habitat Loss There are various areas on site that provide valuable ecological habitat for a variety of protected and priority species. Welsh Government and Cardiff Council, as public bodies, have an obligation to protect and enhance biodiversity under Section 6 of the Environment (Wales) Act. As such the development should incorporate as much of the high value ecological habitat as possible and an integrated landscape and biodiversity management plan should be produced to mitigate and compensate for any that is lost. Enhancement will also be required as part of the scheme to be identified and included in the management plan.

Arboriculture A BS5837:2012 tree survey should be undertaken to establish the retention value of the trees and to inform the design process.

Source: Mott MacDonald 2 Introduction

Mott MacDonald Ltd has been commissioned to provide ecological advice to inform development of a replacement school building for Fitzalan School Cardiff.

2.1 The Proposed Site

Cardiff Council provided a red line plan identifying the new site for review and assessment. The proposed site is located at National Grid Reference ST 16280 75730 and consists of sports fields and amenity space. The site is accessed off Leckwith Road.

2.2 Scope

A walk over survey was undertaken on 18 October 2018 by an experienced ecologist, noting features of ecological interest and any potential ecological and arboricultural constraints.

2.3 Appraisal Results

The site has been considered in terms of the potential constraints presented relating to each subject area addressed. Any constraints have been categorised using a traffic light system as follows:


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Green No significant constraint. Amber Constraint is present but can likely be dealt with using industry standard processes without excessive

cost or time implications. Red Constraint is significant in terms of requiring a bespoke solution entailing design with potential for

increased cost and time requirements. To comply with current flood risk planning policy and guidance, this type of development, in principle, should not go ahead

This assessment is comparative, so any cost item expected to be higher for one option over another is identified and highlighted appropriately.

3 Site Description

The site primarily comprises areas of intensively managed amenity grassland, sports pitches some hardstanding areas and outbuildings associated with the sports pitches.

● To the north the site is bordered by Lawrenny Avenue and residential properties, the Ysgol Gymraeg Pwll

Coch primary school and sports club buildings. ● On the south western boundary there are pitches and sports outbuildings associated with the Cardiff

international Sports Campus and Gol Centres. ● The Canton Common Ditch and A4232 de-mark the south eastern boundary of the site. ● The Ely River and A4232 run close to the far western site boundary.

There are two recreational/ sports outbuildings just north of the development area which have potential to support bats.

TN2 on the Phase 1 Plan is a structure with stone walls and a corrugated pitch roof. There are multiple gaps under the fascia boards, gaps under the ridge beam, external vents which may lead into cavity walls and there are open access points under the corrugated roof.

TN5 relates to the Canton RFC building which is a brick structure with a composite tile roof. There are gaps in the fascia board and vents potentially leading into cavity walls and there are some missing fascia board panels. There is an area of loose rubble and building materials partly colonised by vegetation to the west of this building.

Ysgol Gymraeg Pwll Coch is enveloped by the development site on three sides. Access to the school wasn’t available on the day but the buildings superficially contain potential for roosting bats in the form of slate tiled roofs with flashing around skylights and gable ends. The main building has brick walls; possibly cavity walls. There are at least two outbuildings with corrugated, flat roofs and a number of semi mature trees which might have some bat roosting potential.

The development site is intersected from the north to the south west by a dry ditch (TN14) surrounded by a narrow strip of broadleaved woodland with mature trees. The understory consists of dense shrub, which appears relatively undisturbed, being fenced off from the bordering land on either side. On the eastern side of the ditch, piles of topsoil and mulch were noted, in neighbouring amenity grassland.

The northern boundary of the site consists of lines of native and ornamental trees, species poor hedges and some areas of more diverse scrub. These habitats tend to be located just outside of the development site. However, a hedge containing an invasive species of cotoneaster was identified inside the site boundary close to the Gol Centre at TN19.

At its eastern boundary by the B4267, the site is planned to be over the area of the Canton Common Ditch which is a Site of Interest for Nature Conservation (SINC). From the Building Area Summary plan, the


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footprint of the parking circulation and social ‘habitat’ area is proposed to fall over part of the existing SINC. This may present significant planning challenges given that this area has been recognised for its importance for wildlife by the Local Authority.

The SINC is defined in section 4.2 below. At the time of the constraints walkover, it consists of a dry ditch and a line of mature Lombardy poplar (Populus nigra ssp.) trees interspersed with mature willow (Salix sp.) and ash trees (Fraxinus excelsior). The ditch is approximately 2m deep, surrounded by nutrient rich scrub. The scrub continues past the ditch-line and curves around the north west boundary of the site where it passes out of the SINC boundary. On the eastern side of the dry ditch, mulch heaps were noted during the constraints walkover.

The new school building, PRU building and sports hall are all proposed in areas of existing amenity grassland and sports pitches with little ecological interest.

To the south of the development site there is an area of unmanaged, dense scrub with scattered trees that would be within the footprint of the proposed replacement football pitches including a replacement AWP dome. The replacement pitches would also be positioned alongside, or cutting into, an area of mature, planted woodland bordering the A4232. The planted woodland has an open understory and was not observed to support a rich ground flora.

The most diverse and complex habitat area identified in the walkover, is the scrub and woodland section of the site, located south west of the existing ‘Gol Centre’ and south of Sanitorium Park. This area is under the footprint of a proposed throwing area for discuss, hammer javelin and shot. It consists of dense scrub, areas of semi mature woodland, lines of trees and areas of low vegetation growing on industrial spoil. Small areas of standing water were also identified in this section during the walkover. This habitat area is relatively diverse in plant life and is likely to support a wide variety of species.

This area is intersected by public footpaths including the River Ely Trail and it is proposed to be within the footprint of the relocated CAVC throwing area. The invasive species Japanese knotweed (Fallopia japonica), Himalayan balsam (Impatiens glandulifera) and cotoneaster sp. were identified in this western section.

4 Desk Study

Data has been sourced from the South East Wales Biodiversity Records Centre (SEWBReC) to undertake the desk study and from freely available sources such as the Multi Agency Geographical Information for the Countryside (MAGIC) website to identify the presence of any statutory or non-statutory designations within 2.0km of the site along with any protected species records within 2.0km.

An arboricultural assessment of the proposed works was carried out to a desk study level.

4.1 Statutory Designations

One Site of Special Scientific Interest (SSSI), Cwm Cydfin, Leckwith, is located approximately 1.5km south east and downstream of the proposed development site. The citation for this SSSI defines it as being a mixed deciduous woodland adjacent to saltings of the River Ely, in a valley overlying Triassic Marls and Rhaetic rocks, which are locally exposed in cliffs, beside a tidal creek.

4.2 Protected and Priority Species and non-statutory designations

The search area lies within the administrative area of Cardiff Council, who have identified a series of Sites of Importance for Nature Conservation (SINCs)/Wildlife Sites. The following SINCs lie within the search buffer:


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● Blackweir & Dock Feeder – about 2km north east – No further information has been provided. ● Canton Common Ditch – This is partly located under the footprint of the proposed works, along the

eastern site boundary. It is described as a single ditch acting as a pond, that is the only surviving remnant of the Canton Common marshlands that once supported distant sedge (Carex distans) and flowering rush (Butomus umbellatus), today has varied emergent and bankside vegetation including Austrian yellow cress (Rorippa austriaca);

● Leckwith Pond & Marsh - about 1.4km south east - A pond dug as a storm water storage facility dominated by reeds and sea lavender (Limonium latifolium)- considerable saline influences from the tidal River Ely and in adjacent hollows brackish marsh, all on former tip site where Leckwith Moors were reclaimed by landfill;

● Leckwith Woods Viaduct – 20m south west – no information was provided in the records; ● River Ely – 20m south west - Important for migratory fish, otters, wildflower and bankside vegetation.

Acts as a major wildlife corridor; and ● River Taff – 1.5km north east - Important for migratory fish, otters, wildfowl and bankside vegetation acts

as a major wildlife corridor

No information on the reasons for these sites’ designations was provided by (SEWBReC).

The search buffer extends into the administrative area of the Vale of Glamorgan County Borough Council, who have identified a series of Sites of Importance for Nature Conservation (SINCs)/ Wildlife Sites. The following SINCs are identified by SEWBReC as being within the search buffer:

● Factory Wood (188) – 0.5 km to south; ● Leckwith Woods (360) - 0.2km to the South and on the far side of the River Ely; and ● West Hill Wood (187) -0.9km to South West. No information on the reasons for these sites’ designations was provided by (SEWBReC).

4.3 Protected Species Records

Birds

62 species of birds were identified within 2.0km of the proposed development site.

Amongst these, 12 species named in Schedule 1 of the Wildlife and Countryside Act 1981 (‘Schedule 1 species’), were identified. These are brambling (Fringilla montifringilla), fieldfare (Turdus pilaris), firecrest (Regulus ignicapilla), little gull (Hydrocoloeus minutus), hen harrier (Circus cyaneus), hobby (Falco subbuteo), kingfisher (Alcedo atthis), red kite (Milvus milvus), peregrine (Falco peregrinus), common quail (Coturnix coturnix), redwing (Turdus iliacus) and Cetti’s warbler (Cettia cetti).

Amongst the 62 species, 12 species were identified under Section 7 of the Environment (Wales) Act 2016, (‘Section 7 species’) as being species of principal importance for the purpose of maintaining and enhancing biodiversity in relation to Wales. These were, skylark (Alauda arvensis subsp. arvensis/scotia), lesser redpoll (Carduelis cabaret), hen harrier (Circus cyaneus), common cuckoo (Cuculus canorus), lesser spotted woodpecker (Dendrocopos minor), black-headed gull (Chroicocephalus ridibundus), marsh tit (Poecile palustris), house sparrow (Passer domesticus), dunnock (Prunella modularis), common bullfinch (Pyrrhula pyrrhula), common starling (Sturnus vulgaris) and song thrush (Turdus philomelos).

The closest Schedule 1 species to the site were redwing, kingfisher, hobby, cetti’s Warbler and the closest Section 7 species were dunnock, house sparrow, common bullfinch common starling and song thrush.


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Mammals

Bats

Lesser horseshoe bats (Rhinolophus hipposideros) have been identified roosting inside the Leckwith Woods Viaduct, where the A4232 crosses the River Ely. The nearest roost identified is approximately 20m from the site boundary to the south west. The records date from 2009-2012. The highest count identified in the records was nine individuals. Further lesser horseshoe roosts were identified in Leckwith Woods; the nearest is 280m to the south west. Activity was recorded 850m away to the north west of the site near a residential area.

Other bats identified within 2km include Daubenton’s bats (Myotis daubentonii), brown long-eared bats (Plecotus auratus), common pipistrelle (Pipistrellus pipistrellus), nathusius pipistrelle (Pipistrellus nathusii), noctule bat (Nyctalus noctula), soprano pipistrelle (Pipistrellus pygmaeus) and myotis bat species.

Many of the bat records concentrate on housing to the north of the site including the nearest common and soprano pipistrelle records. The nearest myotis, noctule and Daubenton’s bat records are to the north west approximately 1km from the site. The nearest nathusius pipistrelle record is near the River Taff over 1.7km to the north east. The nearest brown long-eared record is from 800m to the south in fields south of the Leckwith Woods.

Badgers

No badger (Meles meles) setts were identified within 2km. The nearest evidence found in the records is 470m to the south on the far side of the River Ely and Leckwith Woods.

Otters

The nearest otter (Lutra lutra) record is a spraint beside the River Ely to the north west of the site located over 900m from the proposed site.

Hedgehog

The nearest Hedgehog (Erinaceus europaeus) record is 65m to the north east of the site and just outside the development area. at the boundary of the Canton Common ditch and the B4267.

Reptiles

Slow Worm

Slow worms (Anguis fragilis) have been recorded in 2014 inside the footprint of the proposed CAVC throwing area within the site boundary. Other close records include a record in the Fitzalan School playground, about 270m from the proposed works and near to housing 100m to the north of the site.

Other reptiles

The nearest records of the common lizard (Zootoca vivipara) are more than 1km away to the north, in Canton. There are no records of grass snakes (Natrix natrix) within the 2km search area.

Amphibians

There are no records of great crested newts (Lissotriton cristatus) within 2km.

The only palmate newt (Lissotriton helveticus) record is over 1km to the north in the Pontcanna area of Cardiff.

In 2006, 2 adult smooth newt (Lissotriton vulgaris) females and a potential ‘larvae’ were recorded within the site boundary.


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Invertebrates

Records show a range of invertebrates including the following Section 7 Species, pale pin-palp beetle (Bembidion (Ocydromus) testaceum), the grass rivulet moth (Perizoma albulata) and the mole cricket (Gryllotalpa gryllotalpa). The nearest record was the grass rivulet identified at approximately 800m from the proposed site. The purple emperor (Apatura iris) butterfly, was also identified within 2km.

Fish

The records indicated the presence the European eel (Anguilla anguilla), in the River Taff almost 2km to the north and again at 1.6km to the east, on that river.

Invasive Non-Native Species

Records of WCA Schedule 9 invasive non-native species were returned within 2.0km of the site. These included Spanish bluebell (Hyacinthoides hispanica), Canada goose (Branta canadensis), Canadian waterweed (Elodea canadensis), Himalayan balsam (Impatiens glandulifera), Rhododendron (Rhododendron ponticum), Japanese knotweed (Fallopia japonica), and montbretia (Crocosmia pottsii x aurea = C. x crocosmiiflora). An American mink (Neovison vison) was recorded in 2008 over 700m away. Ring-necked parakeets (Psittacula krameria) were recorded over 700m and Harlequin ladybirds (Harmonia axyridis) within 800m.

4.4 Tree Preservation Orders

The nearest tree preservation order was identified as being to the north of the Gol Centre on the northern side of the street (TPO 300 ref: W02 on south west boundary of the hospital (former) and adjacent land). This is not in the development footprint but comes to within 60m of the site boundary.

5 Conclusions and Recommendations

5.1 Ecological Constraints and Implications for Development

The site contains suitable potential habitat for protected species including bats, reptiles, amphibians, hazel dormice, badgers, breeding birds, invertebrates and some potential for use by otters.

The Canton Common Ditch SINC is likely to be a considerable constraint on the development. Areas of parking, circulation, social and habitat areas are proposed on the outside of the new school building and fall within the area of this SINC. The local planning authority are likely to wish to prevent or minimise any adverse impacts resulting from the proposal on this site. The development would need to be evaluated to consider for example, construction methods, access routes, impact of land use following construction, potential disturbance during the operation of the school grounds (taking into account current levels of disturbance) and decommissioning.

Invasive Species

The invasive species Japanese knotweed, Himalayan balsam and cotoneaster sp. are present at certain points on the site and there is a requirement to ensure that these do not spread off the site during the proposed works. A method statement, detailing how these invasive plants will be dealt with during the construction process, will be required.

Bats

There is the potential for roosting, foraging and commuting bats to be present across the development site.


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● A lesser horseshoe bat roost is identified in the desktop study records located 20m from the development site;

● There are a large number of mature trees across the site, which could have the potential to support roosting bats;

● Two buildings just outside the northern site boundary (TN2 and TN5) have features which are suitable for roosting bats;

● Ysgol Gymraeg Pwll Coch is enveloped by the development site on three sides. Access to the school grounds was not available on the day of survey however superficially the school appears to have suitable roosting opportunities for bats.

Assessment of the trees and buildings identified as having potential for roosting bats is required. This can be undertaken at any time of year however trees are best surveyed in winter when the canopy is absent of leaves. Any activity surveys and roost surveys that are required based on the outcome of building and tree assessments can be undertaken from May to September. If roosting bats are found to be affected by the development works, then a development licence will need to be obtained from Natural Resources Wales. This application could take up to 6 weeks or 30 working days from submission to NRW (following grant of planning permission).

Breeding Birds

Breeding birds, including Schedule 1 and Section 7 birds are likely to be found amongst the dense scrub and trees within the proposed development site. The highest potential for activity is likely to be found around the perimeter of the site, where there is suitable habitat including the large complex habitat to the west around the Ely trail and the woodland, associated with the dry ditch, which intersects the site north to south.

There is some potential for breeding birds using the roof of the building at TN5 with house sparrows observed in the soffit box during the constraints walkover. Any building demolition or vegetation removal will need to be timed to avoid the bird breeding season, which is generally considered to be March to August inclusive. If works are proposed within this period, then a nesting bird survey by an experienced ecologist will be necessary. If nesting birds are found these will require safeguarding until the young have fledged from the nest, which can be up to six weeks

Reptiles

The complex habitat to the west of the site provides a particularly good habitat for reptiles with areas of standing water and areas suitable for basking on exposed, stony spoil heaps, bordered by dense scrub. Slow worms have been recorded in this area in 2014. The woodlands and scrub bordering the site and along the central dry ditch also provide suitable habitat for reptiles.

Reptile surveys would be required to ascertain what reptiles are present within the footprint of the proposed development works or it may be possible to assume presence of reptiles across the site, to be agreed with the Council’s ecologist. If surveys are required then they will need to be undertaken between the months of March to June or September and October. Discussion with the Council’s ecologist is recommended to agree the scope of reptile surveys and any mitigation measures. Reptiles are protected and in order to safeguard any population on site a reptile translocation may be required which should be undertaken in the same period as surveys whilst reptiles are active.

Amphibians

Although no records of great crested newts were identified within 2km of the proposed site, it is recommended that habitat suitability index (HSI) surveys be carried out on the small areas of standing water to the west of the site to ascertain their potential to support great crested newts. It would also be worth assessing the state of the ditches around the site to check that they remain dry and carrying out HSI surveys


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on any wet ditches observed. Depending on the result of the HSI surveys, further presence and absence surveys may be required.

Hazel Dormice

Although no records were identified from the biological records data, the scrub and woodland areas described, particularly in the south, the south west and along the central dry drainage ditch woodland, have the potential to support populations of hazel dormice (Muscardinus avellanarius). These areas all fall within the development footprint. Surveys may be required to establish whether the development area contains any populations of hazel dormice, to be agreed with NRW and the Council’s ecologist. Surveys can be undertaken over winter to search for gnawed hazelnuts which can prove presence but not absence. Further surveys between April and September using nest tubes would then be required to fully establish whether dormice are using the site. If evidence of dormice presence is found, then a European protected species development licence may be required. This application could take up to 6 weeks or 30 working days from submission to NRW (following grant of planning permission).

Badgers

No setts or evidence of badgers were identified during the constraints walkover and the records did not identify any setts within 2km. The woodland, scrub areas and ditches with associated dense vegetation, provide suitable habitat for badgers. It is recommended that 8 weeks before construction, a walkover survey is carried out to ascertain whether the proposed works would affect any badger setts that had become established in the habitats identified above. This would allow any required licences to be applied for.

Otters

The proposed CAVC throwing area comes to within 30m of the River Ely at its closest point. Otter spraints have been recorded within 1km on the River Ely. It is recommended that further surveys be carried out to look for holts and resting areas where the proposed development comes to within 30m of the River Ely. This can be undertaken at any time of year.

Habitat Loss

There are various areas on site that provide valuable ecological habitat for a variety of protected and priority species. Welsh Government and Cardiff Council, as public bodies, have an obligation to protect and enhance biodiversity under Section 6 of the Environment (Wales) Act. As such the development should incorporate as much of the high value ecological habitat as possible and an integrated landscape and biodiversity management plan should be produced to mitigate and compensate for any that is lost. Enhancement will also be required as part of the scheme to be identified and included in the management plan.

Arboriculture

There are multiple native and ornamental tree species bordering the site. These may be impacted by the development either directly or via their root protection areas. A BS5837:2012 tree survey should be undertaken to establish the retention value of the trees and to inform the design process.


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Appendices

A. Target Notes

Table 2: Target notes relating to Proposed Fitzalan School

Target Note Feature Notes TN1 Hardstanding Area Hardstanding surface and gravel area surrounding buildings and access tracks. TN2 Sports Building Brick structure, in poor state of repair. Gap under fascia board of western gable

end, 4m high; Gap under flashing; Corrugated pitch roof with openings on all sides; Gaps also noted in eastern gable fascia board.

TN3 Holes in soffit box. On western side of building at TN2 TN4 Scrub – mainly

bramble Near predominantly hawthorn hedge, trimmed.

TN5 Sports Building – Canton RFC

Brick structure with tiled roof. Composite tiles on roof – flat not corrugated;

Gaps in fascia board on southern side; Vents on building sides with potential entrance into cavity walls. A gap and vent exist under the ridge beam; Missing fascia board panels; Gap under fascia board on western side.

TN6 Potentially culverted watercourse

TN7 Potential reptile hibernacula

Loose rubble/building materials and rubbish

TN8 Hedge with poplar sp. trees (mature)

Willow sp. no clear potential bat roosting feature identified apart from heavy ivy cover on some trees. Potential commuting line.

TN9 Narrow section on non- ancient woodland

Including ash, sycamore, hawthorn and ivy. Bordered by bramble.

TN10 Dense bramble scrub TN11 Line of mature

Lombardy poplars - within Canton Common SINC

Interspersed with willow sp, alder and ash.

TN12 Mulch heap – within Canton Common SINC

Potential reptile hibernacula

TN13 Dry ditch - within Canton Common SINC

Including willow sp. – 2m deep amongst scrub.

TN14 Dry ditch 1.5m deep surrounded by trees – potential dormouse habitat, dense scrub with bramble.

TN15 Woodland – linear Including poplar sp. hawthorn, willow sp, bramble, ivy. Potential hazel dormouse habitat – fallen logs, fenced off. Birds nest sighted in hawthorn at 2m high.

TN16 Playing fields Common daisy, perennial ryegrass, greater plantain. TN17 Line of Norway maple

trees Sparse understory including blackthorn bordering playing fields

TN18 Scrub – dense Blackthorn, bramble, hawthorn, rose species, narrow strip 2m wide. TN19 Species poor hedge

with trees Including cotoneaster sp, yarrow, bramble, and ash saplings

TN20 Cargo Containers Metal-sided TN21 Metal gateway


11

380206/FTZ/REP/003

Target Note Feature Notes TN22 Earth mounds Topsoil mounds with loose earth. Potential hibernacula for reptiles. TN23 Buddleia bush TN24 Equipment left in situ Tubing - metal and plastic – possibly goal posts. TN25 Scrub dense Nettle, buddleia, bramble, rose sp, alder, hazel, bindweed sp. TN26 Woodland Bordering main road A4232. Includes ash, cherry sp. Likely plantation. Hazel

dormice potential. TN27 Spectator building Small structure with negligible bat roosting potential

2m length building – tiny space between plastic fascia and breeze block walls. TN28 Sparrowhawk sighting Sparrowhawk failed attack on small bird followed by a chase heading out of

view heading north. TN29 Spoil land Bare ground and building material waste with colonising vegetation including

wild parsnip, spurge sp, geranium sp, willowherb sp, tormentil, scarlet pimpernel, biting oxtongue, rose sp., agrimony. Reptile potential area.

TN30 Wooded area Either side of hardstanding River Ely Trail. Includes sycamore, alder, willow, hawthorn, rose sp, travellers joy and wild parsnip.

TN31 Scrub dense Bramble, St John’s wort sp, travellers joy, rose sp, hemp agrimony, lesser burdock, stinging nettle, ash, teasel, hogweed, biting oxtongue, elder, ash, scattered trees.

TN32 Lines of hawthorn trees

Including elder – breeding bird and dormouse potential habitat.

TN33 Spoil land Colonised by mosses, biting oxtongue, scarlet pimpernel, germander speedwell, ground ivy. Rabbit droppings observed.

TN34 Recently planted woodland on road embankment.

Species include cherry sp, ash, field maple, fungi sp, moss sp, fern sp, dogwood. Low dormouse potential expected under the canopy due to sparse understory and open area.

TN35 Main road bridge A4232

Open area under concrete bridge. Requires assessment for bat potential. Dripping water pools under bridge. No otter signs observed.

TN36 Japanese knotweed Established near River Ely beside A4232 bridge in several clumps. TN37 Himalayan balsam Small patches near bridge – not a large area – occasional sporadic plants at

time of survey. TN38 Cotoneaster sp. Identified – small occasional sporadic plants identified. TN39 Scrub area Either side of footpath and spoil area (and its associated colonising vegetation).

Scrub approximately 5m height, consisting of small trees and dense vegetation. Some wetter areas identified where water pools. Vegetation includes hard rush, poplar sp, field maple, hazel, willow sp, dogwood, rose sp, elder, pedunculate oak and vetch sp.

TN40 Semi mature woodland Oak (pedunculate) in canopy – some potential bat roosting cavities – further investigation required. Also present hazel, willow, hawthorn, Limited ground flora – (generally not indicating ancient woodland)- fern sp, nettle, dock sp. Himalayan balsam – occasional.

TN41 Rabbit burrow Two entrances – small heaps of rabbit droppings TN42 Semi mature woodland

on footpath Includes alder, field maple, willowherb sp, elder, limited understory observed.

Source: Mott MacDonald



Appendix 2 Mott MacDonald 2018 – Phase One Habitat Map



Appendix 3 Summary of Protection Legislation

CARDIFF COUNCIL FITZALAN HIGH SCHOOL BAT REPORT – INTERIM


Appendix 3: Summary of Protection Legislation

Protection Legislation

1.1.1 All UK bat species are listed under Schedule 2 of the Conservation of Habitats and Species Regulations 2018 and as such receive protection under Regulation 43, which makes it an offence to:

• Deliberately capture or kill a bat;

• Deliberately disturb a bat;

• Damage or destroy a breeding site or resting place of a bat;

• Under the Regulations, disturbance of bats includes in particular any disturbance which is likely to:

• Impair their ability to survive, breed or reproduce, or to rear or nurture their young or to hibernate or migrate; and

• Significantly affect the local distribution or abundance of the species in question.

1.1.2 European Protected Species (EPS) licenses can be granted by Natural Resources Wales in respect of development to permit activities that would otherwise be unlawful, providing that ‘favourable conservation status’ is maintained.

1.1.3 All UK bat species are also listed under Schedule 5 of the Wildlife and Countryside Act 1981 (as amended) and therefore receive protection under Section 9 of this Act. Among other things, this legislation makes it an offence to:

• Intentionally kill, injure or take a bat;

• Intentionally or recklessly damage, destroy or obstruct access to any place that a bat uses for shelter or protection; and

• Intentionally or recklessly disturb any bat whilst it is occupying a structure or place that it uses for shelter or protection.

1.1.4 Priority species and habitats agreed under the UK BAP are those which were identified as being the most threatened and requiring conservation action. The UK BAP was superseded by ‘The UK Post-2010 Biodiversity Framework ‘which was published in July 2012 with work focussing at the country level, however the list of priority habitats and species remain the basis for the biodiversity work in the countries. Therefore, species listed under Section 7 of the Environment Wales 2016 were reviewed as these are the rarest and most threatened in England.



1.1.5 All UK bat species are S7 Priority Species. These are:

• Alcathoe (Myotis alcathoe);

• Barbastelle (Barbastelle barbastellus);

• Bechstein’s (Myotis bechsteinii);

• Brandt’s (Myotis brandtii);

• Brown long-eared (Plecotus auritus);

• Common pipistrelle (Pipistrellus pipistrellus);

• Daubenton’s (Myotis daubentoniid);

• Greater horseshoe (Rhinolophus ferrumequinum);

• Grey long-eared (Plecotus austriacus);

• Leisler’s (Nyctalus leisleri);

• Lesser horseshoe (Rhinolophus hipposideros);

• Nathusius’ pipistrelle (Pipistrellus nathusii);

• Natterer’s (Myotis nattereri);

• Noctule (Nyctalus noctula);

• Serotine (Eptesicus serotinus);

• Soprano Pipistrelle (Pipistrellus pygmaeus); and

• Whiskered (Myotis mystacinus).

Foraging Areas & Commuting Routes

1.1.6 Bat foraging areas and commuting routes are not directly protected under the legislation described above. However, loss of important foraging areas and/or commuting routes could potentially constitute a disturbance offence, as defined by the Conservation of Habitats and Species Regulations 20181. In addition, the loss of a commuting route providing the only access to a roost could also potentially constitute deliberate damage/destruction of a breeding site/resting place and damage/destruction/obstruction of a place used for shelter/protection under the Wildlife and Countryside Act 1981 (as amended).

1 Where such actions result in a loss of the ecological functionality of the roost.



Appendix 4 Building Descriptions and Photographs

CARDIFF COUNCIL

FITZALAN HIGH SCHOOL

BAT REPORT – INTERIM


Appendix 4: Building Descriptions and Photographs Reference Building Description Photograph

Canton RFC

Canton RFC is a single storey red brick building with a tiled roof. Original soffits are wooden but the suffices on the

east elevation have recently been changed to plastic. No internal access was possible.

The building is situated approximately 5m east of the central woodland corridor, providing emergence cover for

potential roosting bats.

Gaps under loose roof

tiles

Gaps identified between

soffit and external brick

wall around most of the

building and gaps in the

broken areas of the

soffit.

CARDIFF COUNCIL




Reference Building Description Photograph

Gaps in apex and through

vents

Gaps in rotten wooden

soffits

Changing Rooms

The changing rooms building is a single storey with brick walls and a corrugated tin roof. Access into the roof voids

was not possible because the access is nailed shut. Visibility of the northern elevation is restricted due to dense

vegetation.

Gaps under ridge tile of

corrugated tin roof.

CARDIFF COUNCIL




Reference Building Description Photograph

Gaps in soffits, although

these are a smooth

veneer and contain

nesting material.

Potential gaps behind

fascia of the east roof.



Appendix 5 Bat Surveys 2019 – Dates/Times/Weather Conditions



Appendix 5: Bat Surveys 2019 – Dates/Times/Weather Conditions

Table 1 –TN5- Weather Conditions and Times and Dates of 2019 Surveys Date (sunset/

sunrise) Start Time (hrs)

End Time (hrs)

Weather Conditions

06.06.19 21:25 21:10 22:55 Start: 12ᵒC, dry, wind SW 3mph, 10% cloud cover. End: 11ᵒC, dry, wind SW 3mph, 50% cloud cover.

19.07.19 05.17 03:47 04:54 (supposed to finish at 05:32 but survey abandoned due to heavy rain)

Start: 14ᵒC, dry, wind NE 2mph, 100% cloud cover. Light rain stared: 04.10 Heavy rain stared: 04.30 End: 15ᵒC, wind N 5mph, 100% cloud cover.

26.07.19 05:27 03:57 05:42 Start: 18ᵒC, dry, wind N 4mph, 30% cloud cover. End: 18ᵒC, wind N 5mph, 50% cloud cover.

Table 2 – TN2 - Weather Conditions and Times and Dates of 2019 Surveys Date (sunset/


End Time (hrs)

Weather Conditions

25.07.19 21:12 20:57 22:42 Start: 24ᵒC, dry, wind SW 4mph, 5% cloud cover. End: 20ᵒC, wind NW 4mph, 0% cloud cover.



Activity Surveys

Table 3 – Activity Surveys - Weather Conditions and Times and Dates of 2019 Surveys Date (sunset/


End Time (hrs)

Weather Conditions

30.05.19 21:18 21:18 23:18 Start: 15ᵒC, dry, wind 5mph, 100% cloud cover. End: 13ᵒC, wind 5mph, 100% cloud cover.

27.06.19 21:33 21:33 00:13 Start: 22ᵒC, dry, wind 15mph NE, 0% cloud cover. End: 18ᵒC, wind NW 12mph, 0% cloud cover.

09.07.19 21:29 21.29 23.29 Start: 19ᵒC, dry, wind W 5mph, 100% cloud cover. End: 17ᵒC, wind E 7mph, 0% cloud cover.

10.07.19 05:07 03:07 05:07 Start: 14ᵒC, dry, wind NW 8mph, 0% cloud cover. End: 15ᵒC, wind NW 7mph, 100% cloud cover.

Table 4 - Dates of 2019 Automated Detector surveys

Month Dates Limitations May 24.05.19 - 30.05.19 June 21.06.19 – 27.06.19 The SM4 at location 4 was recording but failed

to record any bats, it is unlikely that this is because no bats passed. It is possible that there was an equipment error.

July 04.07.19 – 09.07.19 The SM4 at location 3 only recorded 24 passes. This is very low compare with other months, it is possible that a barrier (in the form of vegetation) was restricting the amount of calls recorded.



Appendix 6 Automated Detector BAI Tables



Appendix 6: Automated Detector BAI Tables Table 1: Bat Activity Index May

Species Automated Detector Reference

1 2 3 4 Myotis sp. 2.57 0.57 0.00 0.00 Leisler’s 0.29 0.00 0.00 0.00 Noctule 4.57 2.14 0.71 0.00 Nathusius’ pipistrelle 0.00 0.29 0.00 0.20 Common pipistrelle 6.29 3.43 39.43 9.29 Soprano pipistrelle 23.71 52.00 145.43 18.29 Lesser horseshoe 0.14 0.00 0.00 0.00

Table 2: Bat Activity Index June


1 2 3 4 Myotis sp. 0.00 0.50 0.17 0.00 Leisler’s 0.00 0.17 0.00 0.00 Noctule 4.67 0.17 6.67 0.00 Nathusius’ pipistrelle 0.33 0.00 0.17 0.00 Common pipistrelle 18.83 7.00 75.83 0.00 Soprano pipistrelle 11.33 53.67 40.00 0.00 Lesser horseshoe 0.00 0.17 0.17 0.00

Table 3: Bat Activity Index July


1 2 3 4 Myotis sp. 0.67 0.67 0.00 0.17 Leisler’s 0.33 1.50 0.00 0.00 Noctule 5.00 3.67 0.00 0.00 Nathusius’ pipistrelle 0.00 0.17 0.00 0.17 Common pipistrelle 20.83 6.83 3.17 37.50 Soprano pipistrelle 44.50 179.50 0.83 18.33 Lesser horseshoe 0.17 0.17 0.00 0.00 Long eared sp. 0.17 0.17 0.00 0.00 Serotine 0.67 0.17 0.00 0.00



Appendix 7 Determining Value of Ecological Receptors



Appendix 7: Determining Value of Ecological Receptors

1.1.1 The conservation status of a site is defined in Habitats Directive as this relates to internationally designated sites. The CIEEM guidance modifies the definition in order for it to be applicable to sites, habitats or species within any defined geographical area.

1.1.2 The levels of conservation importance are detailed below.

Categories of Values Value

Category Relevance

to Site Examples

International EU An internationally important site (e.g. Special Protection Area (SPA), Special Area of Conservation (SAC), RAMSAR (or a site proposed for, or considered worthy of such designation)); A regularly occurring substantial population of an internationally important species (listed on Annex IV of the Habitats Directive).

National Wales A nationally designated site (e.g. Site of Special Scientific Interest (SSSI), or a site proposed for, or considered worthy of such designation); A viable area of a habitat type listed in Annex 1 of the Habitats Directive or of smaller areas of such habitat which are essential to maintain the viability of a larger whole; A regularly occurring substantial population of a nationally important species (e.g. listed on Schedules 5 & 8 of the Wildlife and Countryside Act 1981 (as amended) (Ref 8.2); A site where field study shows that the site would meet published SSSI Selection Guidelines.

Regional South Wales Areas of internationally or nationally important habitats that are degraded but are considered readily restorable; A regularly occurring, locally significant population of a species listed as being nationally scarce.

County Cardiff A non-statutory designated site (e.g. Local Wildlife Site (LWS) or a site listed on the Ancient Woodland Inventory (AWI)). A site where field study shows that the site would meet published county LWS selection criteria. Viable areas of priority habitat identified in the WLBAP where protection of all areas of that habitat is a published target; A regularly occurring, locally significant population of a species which is listed in a County Red Data Book or WLBAP on account of its regional rarity or localisation.

District Canton A site designated as a non-statutory district wildlife site. A good example of a common or widespread habitat in the local area (e.g. those listed as broad habitats on the LBAP); Habitats that are scarce in the district or appreciably enrich the district ecological resource. A population of a species that is listed in the LBAP because of its rarity



Categories of Values Value

Category Relevance

to Site Examples

in the locality. Local Parish to site Areas of heavily modified or managed vegetation of low species

diversity or low value as habitat to species of nature conservation interest; Common and widespread species.

1.1.3 Individual species may be protected under European or National legislation. Such protection is relevant to the assignment of value to such species, but additional factors, such as population size and the nature of the distribution of the species are also considered. These factors affect the value of species.

1.1.4 The assignment of undesignated features, such as UK Priority and LBAP habitats and species or areas of ancient woodland may not fall clearly into the designations as described above. Therefore, a number of other criteria are used to assess the nature conservation value of a defined area of land.

1.1.5 Some features that are currently of no particular ecological interest in themselves may nevertheless perform an ecological function. For example, they may act as a buffer against adverse effects. This affects their value.



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Documents

CARDIFF COUNCIL FITZALAN HIGH SCHOOL BAT REPORT - … · This report has been prepared by Wardell Armstrong L LP with all reasonable skill, care and diligence, within the terms of