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AECOM A1-SENSLR: MNB – Environmental Impact Assessment – Part 3: Figures and Appendices
Appendix 7.14 Addendum Bat Survey Report
Environment
A1 South East Northumberland Strategic Link Road: Morpeth Northern Bypass
July 2011
A1 South East Northumberland Strategic Link Road: Morpeth Northern Bypass – Updated Bat Survey Report
Prepared by: ......................... Checked by: Harriet Vaight BSc (Hons), MIEEM Lyndsey Yates BSc (Hons), MSc, MIEEM Senior Environmental Scientist Senior Environmental Scientist
Approved by: Kevin Webb BSc (Hons), MSc, MIEEM Regional Director Bentley Works- Bat Habitat Assessment
Rev No Comments Checked by Approved by
Date
0 Draft for internal review LAY KW 08/08/2011 1 Issue to client
5th Floor, 2 City Walk, Leeds, LS11 9AR Telephone: 0113 391 6800 Website: http://www.aecom.com Job No60095823 Reference Ecology RE014 Date Created 27/07/2011 This document is confidential and the copyright of AECOM Limited. Any unauthorised reproduction or usage by any person other than the addressee is strictly prohibited. f:\projects\53101ilee morpeth northen bypass\ecology\bat surveys 2011\report\appendix 7 14 updated bat report 2011 rev2.doc
1 Introduction................................................................................................................................................................ 1
2 Methodology .............................................................................................................................................................. 4
3 Results ....................................................................................................................................................................... 6
4 Summary .................................................................................................................................................................. 24
5 References ............................................................................................................................................................... 26
6 Figures ..................................................................................................................................................................... 28
Appendix A- Transect Survey Raw Survey Forms ............................................................................................................... 30
Appendix B- Building Survey Raw Survey Forms ................................................................................................................ 31
Appendix C- Tree Survey Raw Survey Forms ...................................................................................................................... 32
Figure 1 – Bat Survey 2011 (Map 1 of 2 & Map 2 of 2) .......................................................................................................... 28
Table of Contents
1 Introduction
AECOM Updated Bat Survey Report 1
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1.1 Background & Scope of Work
1.1.1 AECOM were commissioned by Northumberland County Council (NCC) to undertake ecological surveys at the location
of the proposed A1 - South East Northumberland Strategic Link Road: Morpeth Northern Bypass.
1.1.2 The proposed single carriageway bypass is approximately 3.8km in length and will be located to the north of Morpeth
town centre, linking the A1, northwest of Morpeth, with the A197 at Whorral Bank. The bypass will provide a more direct
link to the former coalfield areas of south east Northumberland, thereby facilitating regeneration of the area, easing
congestion in Morpeth and promoting further development The route is shown on Figure 1, starting at approximate
National Grid Reference (NGR) NZ 180868 and finishing at approximate NGR NZ 211873.
1.1.3 The proposed bypass runs through an area that predominantly comprises improved grassland (grazed) and arable land
bounded by primarily species-poor intact hedgerows and fences, as well as several minor tributaries of the River
Wansbeck. At the eastern end of the scheme the route skirts the northern edge of Howburn Wood as it crosses a former
opencast coal site on Pegswood Moor. Lighting is proposed at the St. Leonard’s Roundabouts, along the link road to
Northgate Roundabout, at Northgate Roundabout, St. George’s Roundabout and an extension of the existing road
lighting at Whorral Bank Roundabout.
1.1.4 As part of an Environmental Assessment of the proposed bypass, a suite of ecological surveys have been carried out at
the site by AECOM since March 2007. During these surveys, the area of the proposed route of the bypass was
identified to provide habitat suitable for bats.
1.1.5 Bat surveys were undertaken at the site to determine the presence/absence of bat roosts and the extent of bat activity
within 250m of the proposed bypass. The bat survey work was split into two sections of the proposed bypass, as
summarised below:
- St. George’s Link Section; between the A192 at Pottery Bank (at NGR NZ 184872) to the B1337 at Whorral Bank
(NGR NZ 211873) by AECOM. Bat surveys undertaken include:
- Habitat assessment July 2008.
- Activity surveys late-July/early-August 2008, September 2008.
- Roost surveys July and September 2008.
(Morpeth Northern Bypass Bat Survey Report, October 2008)
- St. Leonard’s Link Section; between the A1 (at NGR NZ 180868) and the A192 at Pottery Bank (NGR NZ 184872).
Bat surveys undertaken include:
- Habitat assessment June 2009.
- Transect surveys May and June 2009.
- Roost surveys late-June/early-July 2009.
(St. Leonard’s Link Ecology Surveys Report, January 2010)
1.1.6 A background to bats, and legislation and policy guidance in relation to bats can be found within the original survey
reports. The reports also include local bat data obtained from an Ecological Data Search.
1.1.7 The previous surveys identified seven bat species at the site: common pipistrelle (Pipistrellus pipistrellus), soprano
pipistrelle (Pipistrellus pygmaeus), noctule (Nyctalus noctula), Daubenton’s (Myotis daubentoni), whiskered (Myotis
mystacinus) / Brandt’s (Myotis brandti), Natterer’s (Myotis nattereri) and Leisler’s (Nyctalus leisleri).
1.2 Purpose of this Report
1.2.1 The purpose of this report is to update the bat surveys for the scheme prior to issue of the Environmental Statement.
The report documents the methodology followed during the updated bat surveys and reports the findings. This
information will be used to inform and update the impacts and mitigation sections of the Environmental Statement. A
comparison is also made with the findings of the previous bat surveys undertaken in 2008 and 2009.
1 Introduction
2 Methodology
AECOM Updated Bat Survey Report 4
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2.1 Transect Surveys
2.1.1 Manual transect surveys help gain an understanding of how bats use an area and are used to determine the intensity of
bat activity (spatially and temporally) and the type of activity, such as foraging (feeding buzzes), commuting (high direct
pass rates) or returning or emerging from roosts.
2.1.2 The objectives of the transect surveys were:
o To determine the potential effect the proposed bypass would have on bat species present.
o To determine the area and value of habitat for bat species.
o To identify links to potential high value habitats outside of the development area.
o To determine if the route of the proposed bypass is a corridor, or contains corridors, of importance for
commuting bats.
2.1.3 A transect following the line of the proposed bypass route was undertaken, with five minute stopping points at features
and habitat that were likely to be used by bats, e.g. potential flightline crossing points of the proposed bypass such as
hedgerows, tree lines and watercourses. The route of the bypass and the location of stopping points are shown on
Figure 1.
2.1.4 The transect survey was undertaken over three dusk surveys, split as shown in Table 1.
Table 1 Transect survey sections
Survey date
Transect section Sunset
time
Survey start
time
Survey finish
time 18/07/2011 Start at eastern end of the route, on east of
B1377 Whorral Bank, and finish at How Burn. 21:33 21:20 23:40
19/07/2011 Start at How Burn, and finish at Cotting Burn. 21:33 21:20 23:39
21/07/2011 Start at Cotting Burn, and finish at St. Leonard’s Lane.
21:29 21:20 23:30
2.1.5 Surveys were undertaken in accordance with guidance within the “Bat Surveys Good Practice Guidelines” (Bat
Conservation Trust, 2007). Surveys were therefore undertaken in calm, dry weather conditions when temperatures were
>100C ensuring optimum foraging activity.
2.1.6 Transects were started approximately 10 minutes prior to sunset and continued for approximately 2 hours after sunset.
This ensured that both late and early emerging bat species may be recorded. Each transect was walked by two
surveyors, walking at a slow, constant pace.
2.2 Building Roost Surveys
2.2.1 Rose Cottage is the only building in the line of the proposed bypass route, and is proposed to be demolished to facilitate
construction. The location of Rose Cottage is shown on Figure 1 (Map 2 of 2). This is a red-brick bungalow with a slate
roof and a small flat-roof extension to the north that has a bituminous roof material. There are wooden fascias and
concrete barge boards around the red-brick section.
2.2.2 During the previous survey undertaken at the building on the 24th September 2008, a roost supporting a single soprano
pipistrelle bat was identified in the south-west corner of the building between the fascia and roof.
2.2.3 Two dusk surveys were undertaken on this building as part of these update surveys, with details provided in Table 2.
2 Methodology
AECOM Updated Bat Survey Report 5
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Table 2 Building surveys
Survey date Sunset time Survey start time Survey finish time
20/07/2011 21:31 21:10 22:40
25/07/2011 21:22 21:05 22:48
2.2.4 The surveys aimed to determine:
o Whether bats are still using the building as a roost.
o What species of bat are present.
o The population size of bats roosting.
o Whether the surrounding area is used as commuting/foraging habitat.
2.2.5 Surveys were undertaken in accordance with guidance within the “Bat Surveys Good Practice Guidelines” (Bat
Conservation Trust, 2007). Surveys were therefore undertaken in calm, dry weather conditions when temperatures were
>100C ensuring optimum foraging activity.
2.2.6 Two surveyors conducted each survey and were located at either end of the building to optimise the area covered during
the surveys.
2.3 Tree Roost Surveys
2.3.1 Surveys of trees with high bat potential within the line of the proposed bypass route were surveyed as part of the update
surveys. The locations of the trees are shown on Figure 1. These surveys aimed to determine:
o Whether bats are using particular trees as roosts.
o What species of bat are present in the roost.
o The population size of bats roosting in the tree.
o Whether the surrounding area is used as commuting/foraging habitat.
2.3.2 The high bat potential trees were identified during the Bat Habitat Assessments undertaken during the previous surveys.
Nine high potential trees within the St. George’s Link section and seven high potential trees within the St. Leonard’s Link
section fall directly under the footprint of the proposed bypass route and may be felled as a result. Descriptions of the
trees can be found in the previous AECOM reports; Morpeth Northern Bypass Bat Survey Report, October 2008 and St.
Leonard’s Link Ecology Surveys, January 2010.
2.3.3 During the previous bat surveys, only one tree was found to support a bat roost. This was Tree 17, where two soprano
pipistrelle were recorded roosting during a dawn survey on the 25th September 2008.
2.3.4 The tree surveys were carried out during dusk and dawn. Dusk surveys commenced approximately half an hour before
sunset until approximately an hour and a half after sunset. Different bat species emerge at different times and the timing
of the dusk surveys allows for any species present to be recorded. Dawn surveys commenced approximately between
1.5 to 2 hours before sunrise and finished at sunrise or shortly afterwards.
2.3.5 Table 3 outlines the date, location and type of tree roost survey undertaken.
AECOM Updated Bat Survey Report 6
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Table 3 Tree roost surveys
Date of
survey
Location and type of survey Sunset/sunrise
Time
Survey start
time
Survey finish time
19/07/11 Tree 1 + 2, St. George’s Link – Dawn 04:55 03:30 05:10
21/07/11 Tree 30 +35, St. George’s Link – Dawn 04:50 03:30 05:10
22/07/11 Trees 13,14 + 15, St. George’s Link–
Dawn
04:55 03:30 05:10
26/07/11 Tree 17 + 27, St. George’s Link – Dawn 05:08 03:40 05:10
26/07/11 Tree 43 and 69, St. Leonard’s Link –Dusk 21:21 21:00 22:38
27/07/11 Trees 26 to 28, and 35/36, St. Leonard’s
Link – Dawn
05:06 03:45 05:10
Weather Conditions
2.3.6 Table 4 summarises the weather conditions during each survey. Conditions during all surveys were appropriate for
conducting dusk and dawn surveys. A dawn survey on the 20th July 2011 was proposed, however this was cancelled
due to poor weather conditions. .
Table 4 Weather conditions during surveys
Date of
Survey
Temp at
survey
start
(0C)
Temp at
survey
finish (0C)
Wind
speed
Rainfall Cloud
cover
Weather during the day
18/07/11 –
Dusk
16.5 16 F0 None 80% Showers and warm during the day.
19/07/11 –
Dawn
18 16 F0 None 85% Dry and calm during the day.
19/07/11 –
Dusk
16 16 F0 Slight
drizzle
90% Combination of heavy rain showers
and calm during the day.
20/07/11 –
Dusk
14 12 F0 None 100% Heavy continuous rain during day
which cleared before the start of the
survey.
21/07/11 –
Dawn
12 10 F0 None 90% Dry and calm during the day.
21/07/11 –
Dusk
15.9 14 F1 None 80% Dry, warm and calm during the day.
22/07/11 –
Dawn
13 11 F0 None 65% Dry and calm during the day.
25/07/11 –
Dusk
16 15 F0 None 80% Warm, overcast and dry during the
day.
26/07/11 -
Dawn
17 16 F0 Light rain 100% Light rain overnight.
26/07/11 -
Dusk
16 15 F0 None 100% Light drizzle and calm during the
day.
27/07/11 –
Dawn
17 15 F0 None 70% Warm, dry and calm during the day.
AECOM Updated Bat Survey Report 7
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Personnel
2.3.7 Table 5 provides details of the personnel involved in the surveys.
Table 5 Personnel involved in the surveys
Personnel Date of survey Experience
Kerry Rhodes
18/07/11 to 27/07/11 Bat surveyor, Natural England survey licence number 20104345 held since 2007, bat surveying for 8 years.
Francesca Tarry 18/07/11 to 22/07/11 Graduate ecologist, with 3 years experience of bat surveys
Stephen Dixon 25/07/11 to 27/07/11 Senior ecologist, with 5 years experience of bat surveys
Equipment Used
2.3.8 For all surveys, surveyors were equipped with Batbox Duet frequency division bat detectors which were used to identify
and monitor bat activity. These detect bat echolocation sound waves and present them in a format audible to the human
ear. Powerful torches assisted in locating bat activity.
2.3.9 Some species may be easily identifiable by audible characteristics during a survey, but for confirmation, recordings were
made throughout the surveys. Equipment such as MP3 recorders were used to record bat echolocation onto an
electronic format. These recordings are then analysed using BatSound (Version 3.31) to identify bat calls to species
level.
2.3.10 All bat activity observed was recorded on a map and on survey forms, noting information such as time, species, number
and behaviour.
3 Results
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3.1 Transect Survey Results
3.1.1 Bat activity was recorded along the length of the transect of the proposed bypass route; the results of the transect survey
are provided in Table 6. The transect survey raw survey forms can be found in Appendix A. The stopping point (SP)
locations are shown on Figure 1.
Table 6 Summary of transect survey results
Transect section
Number of stopping points (SP)
Bat activity
Eastern end of the proposed bypass to How Burn.
6 No bats were recorded at stopping points at Whorral Bank road or at the northern points of Howburn Wood (SP1-3). Noctule, Myotis sp. and common pipistrelle (all single bats) were recorded commuting along the edge of Howburn Wood and using the fenceline and small embankment leading northwards from Howburn Wood towards the golf course (SP4-5). A common pipistrelle was recorded commuting and foraging along the hedgerow running between Howburn Wood and East Shield Hill (SP6).
How Burn to Cotting Burn.
12 No bats were recorded at How Burn, or the fence and hedgerow west of How Burn (SP7-9). Small groups of common pipistrelle (2 to 5 bats) were recorded flying northwards along the fenceline east of the proposed St Georges roundabout (SP10). A common pipistrelle was recorded flying across the field at the location of the proposed St Georges roundabout (SP11). A noctule and common pipistrelle were recorded along the hedgerow east of the road at Kater Dene (SP12). Common pipistrelles were recorded along the road at Rose Cottage (SP13-15). No bats were recorded on the two hedgerow boundaries west of Rose Cottage or at Cotting Burn (SP16-18).
Cotting Burn to St. Leonard’s Lane.
6 No bats were recorded on the boundaries in vicinity to East Lane End Farm (SP19-21). Three individual commuting / foraging common pipistrelle were recorded along the hedgerow north of West Lane End (SP22). Five foraging noctule were also recorded from this stopping point, flying along the A1 embankment. Commuting and foraging common pipistrelle and Leisler’s (individuals and in small groups up to 4) were noted along the hedge adjacent to St. Leonard’s Lane (SP24).
3.1.2 Peak foraging and commuting activity was recorded in the following areas and it is therefore likely that the bats would
cross the proposed bypass route:
o SP4-5: Fenceline and small embankment leading northwards from Howburn Wood towards the golf course,
and along Howburn Wood (4 common pipistrelles, 3 noctule and 1 Myotis).
3 Results
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o SP10: Along the fenceline east of the proposed St. George’s roundabout (13 common pipistrelles).
o SP12: Hedgerow east of the road at Kater Dene (2 common pipistrelles and 1 noctule).
o SP22: Hedgerow north of West Lane End Farm (3 common pipistrelles).
o Eastern A1 embankment (5 noctules).
o SP24: St. Leonard’s Lane (approximately 5 common pipistrelles and 3 Leisler’s).
3.1.3 The following bat species were recorded during the transect surveys:
o Common pipistrelle.
o Noctule.
o Natterer’s bat.
o Leisler’s bat.
3.2 Building Survey Results
3.2.1 No droppings or staining were visible on the exterior walls of the building. However, there had been heavy rain prior to
the survey which may have washed them away.
3.2.2 During the first dusk survey on the 20th July 2011, commuting and foraging single common pipistrelle and Myotis bats
were recorded, with activity particularly high along the adjacent road. However, no bats were observed emerging from
the building.
3.2.3 During the second dusk survey on the 25th July 2011, two common pipistrelle were observed emerging from the south
west corner of the building (same location as during the September 2008 survey). Numerous commuting and foraging
common pipistrelle and Myotis bats (individuals and in pairs) were also recorded, mostly along the adjacent road.
3.2.4 The building survey raw survey forms can be found in Appendix B.
AECOM Updated Bat Survey Report 8
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3.3 Tree Survey Results
3.3.1 Bat activity was recorded in the vicinity of all the trees that were surveyed with high bat roost potential. A roost was
identified in Tree 36; it was not possible to identify this individual to species level from its social call but it is likely to be
either a Leisler’s bat or a noctule as these species are known to roost predominantly in trees. No other trees were
recorded as being used by bats for roosting at the time of survey, including Tree 17 which was identified as having a
soprano pipistrelle bat roost during the September 2008 surveys. Table 7 summarises the activity recorded at the trees
surveyed. The tree survey raw survey forms can be found in Appendix C.
Table 7 Summary of tree survey results
Tree
No.
Date of
survey
Activity recorded Roosts recorded
St. George’s Link
1, 2 19/07/11 –
Dawn
Individual common pipistrelle and noctules foraging and
commuting in area.
No bats recorded roosting in trees.
13, 14 20/07/11 -
Dawn
Individual common pipistrelle commuting in area. No bats recorded roosting in trees.
15 20/07/11 -
Dawn
Individual common pipistrelle commuting in area. No bats recorded roosting in tree
17 21/07/11 -
Dawn
Common pipistrelle commuting in area, as individuals
and in pairs.
No bats recorded roosting in tree.
27 21/07/11 -
Dawn
Noctule and Myotis sp. foraging and commuting in area,
as individuals and in pairs.
No bats recorded roosting in tree.
30 22/07/11 –
Dawn
Common pipistrelle commuting in area. No bats recorded roosting in tree.
35 22/07/11 –
Dawn
Common and soprano pipistrelle foraging and
commuting in area, in small groups of up to four.
No bats recorded roosting in tree.
St. Leonard’s Link
26, 27,
28
26/07/11 -
Dusk
Individual common pipistrelle and probably Myotis sp.
foraging and commuting in area.
No bats recorded roosting in trees.
35, 36 26/07/11 -
Dusk
Common and soprano pipistrelle, noctule, Leisler’s and
Natterer’s foraging and commuting in area, as individuals
and in small groups of up to five bats.
Bat recorded roosting in Tree 36.
Social calls heard, potentially from
a branch with a horizontal split. Not
able to identify due to social call,
but likely to be Leisler’s bat or a
noctule.
43 27/07/11 -
Dawn
Myotis sp. foraging and commuting in area, as
individuals and in small groups of up to three bats.
No bats recorded roosting in tree.
69 27/07/11 -
Dawn
Common and soprano pipistrelle and Natterer’s foraging
in area, in small groups of up to three bats.
No bats recorded roosting in tree.
AECOM Updated Bat Survey Report 9
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3.3.2 During the survey at Trees 35 and 36, an important naturally occurring hop-over across the A1 was noted, linking
habitats east and west of the A1. The line of mature trees east of the A1 are tall at this location, and the A1 is in cutting
forming a naturally occurring flightline and crossing point for a number of species of bat.
4 Summary
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4.1 Summary
4.1.1 The survey area is considered to provide high quality habitat for foraging, commuting and roosting bats. Commuting
habitat is provided along mature hedgerows and tree lines which is the predominant form of field boundary. Local access
roads bounded by hedgerows and mature trees provide further high value commuting habitat. A wide variety of potential
foraging habitat exists within the survey area providing potential food sources for a variety of bat species including
mature broadleaved woodland edge, watercourses, ponds, pastoral farmland and mature hedgerows and tree lines.
Potential roosting habitat exists within mature broadleaved trees and various rural properties which occur within and
immediately adjacent to the survey area. The high degree of connectivity provided by hedgerows, watercourses and tree
lines further increases the value of the site for bats.
4.1.2 Five species of bat were confirmed to be active within the survey area including common pipistrelle, soprano pipistrelle,
Natterer’s bats, Leisler’s and noctule. It is likely that brown long eared are also present within the survey area due to the
presence of suitable habitat but were not recorded during the surveys as brown long-eared bat calls are very quiet and
rarely picked up by bat detectors. The significance of these species is shown in Table 7. Only Leisler’s is classed as
rare (although is widespread) on a national scale and is therefore of greatest significance from this set of results.
Table 7 Significance of species recorded
Species National Scale Regional Scale1 Local Scale
2
Common pipistrelle Common and widespread Common and widespread Common and widespread
Soprano pipistrelle Common and widespread Common and widespread Common and widespread
Natterer’s bat Frequent and widespread Frequent and widespread No records known
Leisler’s bat Rare and widespread Rare and distribution unknown No records known
Noctule Frequent and widespread Frequent and widespread No records gathered
4.1.3 Bat activity was recorded directly within the footprint of the proposed bypass route and also along hedgerows and
watercourses which would be severed.
4.1.4 In terms of potential roost sites, two locations were confirmed as roost sites during these update surveys; Rose Cottage
and Tree 36. Two common pipistrelles were confirmed to be roosting within Rose Cottage. A bat was recorded as
emitting social calls from Tree 36 during the dawn survey conducted on the 27th July 2011. It was not possible to
identify this individual to species level from its social call but it is likely to be either a Leisler’s bat or a noctule as these
species are known to roost predominantly in trees. Further survey work would be required to inform Natural England
European Protected Species (EPS) development licences for these roosts.
1 Data obtained from Northumberland Bat Group webpage.
2 Data obtained from the 2km Ecological Data Search for the Survey Area (AECOM, Morpeth Northern Bypass Bat Survey
Report, October 2008)
4 Summary
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4.1.5 The results of the transect survey indicate that bat activity is present along the whole length of the proposed bypass route
and that bats use existing hedgerows and watercourses as flightlines for commuting and foraging. Bat activity was
recorded directly within the footprint of the proposed bypass route and also along hedgerows and watercourses which
would be severed by the proposed bypass route (Figure 1). These include the following;
o The flightline shown at TN1 – a large number (approximately 20 but this number is likely to be underestimated
due to the difficulties in seeing bats flying in low light conditions) of bats of different species (including noctule,
common pipistrelle and Leisler’s) were seen to be using this flightline to cross the A1. The mature (and
therefore tall) trees which form the field boundary to the west and east of the A1 in addition to the fact that the
A1 is constructed in a cutting at this point combines to form a natural ‘hop-over’ for bats commuting across the
A1. The height of the tree canopy encourages flight at height across the A1 which may significantly reduce the
chance of mortality through collision with vehicles using the A1. This flightline is a significant feature for bats.
o The flightline shown at TN2. A number of bats were noted using this flightline which links to dense, continuous
hedgerows at its northern and southern extent.
o The flightline shown at TN3. A number of bats of different species were noted using the local access road to
link to the mature tree line which runs east-west to the east of Rose Cottage. It is likely that this flightline is
linked to that shown at TN2.
o The woodland edge of Howburn Wood at TN4 was shown as being an important flightline used by a number of
different species of bats.
o The dense hedgerow and bank which lies off the south bound carriageway of the A1 was shown as being
important for foraging noctules. This is likely to be a favoured foraging ground due to the land use as pastoral
farmland which will encourage insects. This, in addition to the fact that the A1 is built on an embankment at this
point and therefore will provide shelter from the prevailing westerly wind will increase the value of this site as a
foraging ground due to its sheltered position where insects may aggregate.
o The watercourses of How Burn and Cotting Burn will provide suitable foraging habitat and commuting habitat
linking those which occur to the south and north of these watercourses.
o St. Leonard’s Lane, due to the dense hedgerows and mature broadleaved trees which form the field
boundaries of adjoining land, provides valuable sheltered foraging and commuting habitat.
4.2 Comparison with Previous Surveys
4.2.1 The results of the previous surveys can be found within the following AECOM reports; Morpeth Northern Bypass Bat
Survey Report, October 2008 and St. Leonard’s Link Ecology Surveys, January 2010
4.2.2 The previous surveys identified seven species of bat within the Survey Area; all the species found by this survey, as well
as Daubenton’s and whiskered/Brandt’s.
4.2.3 A single soprano pipistrelle was found roosting at Rose Cottage by the previous survey, in the south-west corner of the
building between the fascia and roof. This year’s survey found two common pipistrelle bats using the same roost.
4.2.4 This survey identified a new roost at Tree 36, which was not found during the previous surveys.
4.2.5 Tree 17 was recorded as a soprano pipistrelle roost during the previous 2008 surveys, though no evidence of a roost
was found within the tree during this survey. This tree should still be considered as a roost as part of the Environmental
Statement assessment.
4.2.6 Five new important foraging and commuting areas were identified by this survey, including a hop-over the A1. These
areas were not identified by the previous surveys. The important foraging and commuting areas identified by the
previous surveys were not found highlighted during this survey. However, this could be due to the transect routes being
different, therefore highlighting separate areas.
AECOM Updated Bat Survey Report 26
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4.3 The Nature Conservation of the Bat Population
4.3.1 Refer to the previous AECOM survey reports for the assessment methodology to determine nature conservation value
(Morpeth Northern Bypass Bat Survey Report October 2008 and St Leonards Link Ecology Surveys Report January
2010). The nature conservation value of the local bat population of the proposed bypass route was considered to be
medium by the previous surveys, and this is still considered to be the case following these updated surveys. All species
identified during the survey work are listed on the Northumberland Biodiversity Action Plan (LBAP), and soprano
pipistrelle and noctule bats are also featured on the UK BAP, and are therefore of importance nationally. However, the
relatively small number of bats recorded at the site would prevent it from being considered as high nature conservation
value.
4.4 Further Survey Work
4.4.1 These surveys provide updated data on the local bat population for inclusion within the Environmental Statement (ES)
for the scheme. The impact assessment and recommended mitigation can be found within the ES.
4.4.2 The current programme for the project is for construction to commence January 2014, therefore pre-construction surveys
for bats will be necessary to update data prior to works. Additional surveys will also be required at Rose Cottage, Tree
17 and Tree 36 to provide further data to inform Natural England European Protected Species (EPS) licence
applications. Replacement roosting habitat, for example in the form of bat boxes, will need to be provided as part of the
licence.
5 Bibliography
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Environment
AECOM (October 2008) Morpeth Northern Bypass Bat Survey Report. AECOM (January 2010) St. Leonard’s Link Ecology Surveys Report.
Bat Conservation Trust (2007) Bat Surveys; Good Practice Guidelines. Bat Conservation Trust, London. Cowan, A (2003) Trees and bats. Arboricultural Association Guidance Note 1 (Second Edition). Arboricultural Association, Hants. http://www.trees.org.uk English Nature (2004) Bat Mitigation Guidelines. English Nature. EU Habitats Directive (1992). Council Directive 92/43/EEC; on the Conservation of Natural Habitats and of Wild Fauna and Flora. Highways Agency (2008) Nature Conservation Advice in Relation to Bats; Interim Advice Note 116/08. HMSO (1994) Wildlife and Countryside Act 1981 (as amended). Chapter 69 http://www.opsi.gov.uk/RevisedStatutes/Acts/ukpga/1981/cukpga_19810069_en_1 The Stationary Office. HMSO (1994). The Conservation (Natural Habitats & c.) Regulations 1994. http://www.opsi.gov.uk/si/si1994/Uksi_19942716_en_1.htm.The Stationary Office. HMSO (1995). Biodiversity: The UK Steering Group Report. Tranch 2: Action Plans. http://www.ukbap.org.uk.The Stationary Office. Mitchell-Jones, A.J, & McLeish, A.P. (Edited by) (2004) Bat Workers Manual, 3
rd Edition. JNCC
Northumberland Bat Group (undated) Bats in Northumberland http://northumberlandbats.org.uk/index.php?option=com_content&view=article&id=45&Itemid=18
5 References
6 Figures
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Figure 1 – Bat Survey 2011 (Map 1 of 2 & Map 2 of 2)
6 Figures
Appendices
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Appendix A- Transect Survey Raw Survey Forms
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Appendix B- Building Survey Raw Survey Forms
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Appendix C- Tree Survey Raw Survey Forms