Swan Goose
Anser cygnoid
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<birdfyi-bird slug="anser-cygnoid"></birdfyi-bird>About
A large long-necked goose with warm brown body, pale underparts, a dark brown cap, and a long straight black bill. The ancestor of the Chinese domestic Swan Goose breed. Wild populations are declining sharply. Breeds in Mongolia and Siberia; winters in eastern China. Endangered in the wild.
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| Wingspan | 84.4 cm | 33.2 in |
| Weight | 3343.75 g | 117.95 oz |
Identification
Plumage
Long neck with rich chestnut hindneck stripe. Forehead and crown dark brown; face and throat whitish. Upperparts grayish-brown; underparts pale. Long black bill. Pink legs. Ancestor of Chinese domestic geese.
Habitat & Range
Breeds on steppe lakes, rivers, and meadows in Mongolia, Siberia, and northeastern China. Winters in eastern China's Yangtze River floodplain and coastal wetlands. Wild populations critically small.
Geographic Range
Breeds in the tundra and boreal zones of Alaska and Canada; winters on the Pacific coast from British Columbia to California.
Diet & Feeding
Herbivore; grazes aquatic plants and grasses at wetland margins; takes invertebrates in spring; diet shifts with seasonal flooding.
Conservation Status
Behavior & Breeding
Nesting
Incubation: 28 days.
Clutch Size
4-8
Sound
Song
A deep, resonant 'honk'; less frequently heard than Greylag. The EN status reflects serious population decline; vocalizations are considered similar to Greylag Goose.
Taxonomy
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| Order | Anseriformes (Waterfowl) |
| Family | Anatidae (Ducks, Geese & Swans) |
| Genus | Anser |
| Species | Anser cygnoid |
External Databases
Frequently Asked Questions
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Similar Birds
Other species in the Anatidae family