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Conservation of the Greater White-fronted Goose
By: Doty McQuerry
Taxonomy
• Kingdom: Animalia• Phylum: Chordata• Class: Aves• Order: Anseriformes• Family: Anatidae• Genus: Anser• Species: albifrons
– Anser albifrons
Other Common Names
• White-fronted Goose• Specklebelly Goose• Speck• Specklebelly Brant• Laughing Goose• Harlequin Brant• Gray Brant• Pied Brant• Prairie Brant• Spectacled Brant• Yellow Legged Goose• Timber Goose• Gray Wavey
Physical Description
• Base of bill and forehead are white• Gray-brown body• Black speckles on belly• Orange legs and feet• Pinkish to orange bill• White flanks, rump, and undertail• Dark tail has white tip• Dark eyes• Thin white stripe along side• Feathers on back are dark with tan tips
Size
• Medium-sized goose– Length: 64-81 cm (25-32 inches)– Wingspan: 135 cm (53 inches)– Weight: 68.87-116.88 ounces (4.30-7.31
pounds)
Sex Differences
• Males and females look alike, with male only slightly larger
Adult versus Immature
• Immature geese– Slightly smaller– Lighter color– Lacking white forehead coloring– Lacking black belly marks– Light pinkish bill– Yellow-orange legs and feet
Subspecies
• Four subspecies recognized by American Ornithologist’s Union– Eurasian White-fronted Goose– Greenland White-fronted Goose– Pacific White-fronted Goose– Tule White-fronted Goose
Habitat
• Prefers aquatic habitat– Freshwater coastal marsh swamps and
pools
• Breeds – tundra wetlands
• Winters – marshes, bays, lakes, agricultural fields
Diet
• They eat corn, barley, rice, wheat, sorghum, grasses, herbs, sedges, bulrushes, acorns, berries, insects, and mollusks.
Breeding
• Courting ceremony– Calling – both sexes– Head dipping– Neck forward– Fluttering of neck feathers
• Mates from May to June
• Monogamous pair bonds at 2 years old and breed at 3 years old
Nesting and Young
• Nest in shallow depression on ground• Nest lined with feathers, grass, and down• Clutch size of 1 – 8 white/tan eggs• Female sits on eggs for 3 ½ weeks• Male stands guard• Young at hatching:
– covered in down– eyes open– led to water within 24 hours – can swim and feed
Range
• Summers – breeds in Alaska, northern Canada, and Greenland
• Winters – coastal British Columbia to California, in New Mexico, Gulf coast of Texas and Louisiana; rare on east coast or the interior U.S.
Range Map
Major Threats
• Over-harvesting
• Predators (eat eggs): foxes, jaegers, and gulls
• Flooding of nests
• Aircraft disturbance
Populations and Management
• Global status: Common• Populations increasing• Pacific population declined in 1970’s and
1980’s due to heavy harvesting, but has been recovering
• Tule subspecies – Vulnerable– Low population size– Restricted distribution
• Greenland subspecies – Vulnerable– Over-harvesting
The End
• Any Questions?