Greylag Goose vs Black Swan
Anser anser 对比 Cygnus atratus
Side-by-Side Comparison
| 属性 | Greylag Goose | Black Swan |
|---|---|---|
| 学名 | Anser anser | Cygnus atratus |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | 130.0 cm (51.2 in) |
| 翼展 | 87.1 cm (34.3 in) | 190.0 cm (74.8 in) |
| 体重 | 3297.5 g (116.32 oz) | 6200.0 g (218.70 oz) |
| 食性 | -- | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … |
| 产卵数 | 3-12 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Greylag Goose
Breeds on moorland, bogs, freshwater wetlands, and lake margins across Eurasia from Iceland to central Asia. Winters on estuaries, agricultural fields, and wetlands. Feral populations year-round in parks.
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Song & Call Comparison
Greylag Goose
A deep, loud 'aahng' honking. The ancestral goose of domesticated geese; its call is the template for the classic 'goose honk'. Flocks are highly vocal in flight.
Black Swan
Gives a musical bugling 'boo-boo-boo' in flight and softer honking on water. Less vocal than Mute Swan; produces a baying call when alarmed. Wings whistle softly in flight.
Geographic Range & Migration
Greylag Goose
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
保护状况
Greylag Goose
Black Swan
How to Tell Them Apart
Greylag Goose
Large and heavy; uniformly gray-brown with pale feather fringes on back. Head and neck grayish-brown. Orange-pink bill; pink legs. Pale gray forewing conspicuous in flight. Ancestor of domestic geese.
Black Swan
Almost entirely black with white flight feathers visible in flight. Red bill with a white band near the tip. Dark red to reddish-brown iris.
Bright red bill with a pale tip and prominent white band
About These Birds
Greylag Goose
灰雁是家鹅的野生祖先，广泛分布于欧亚大陆。体型粗壮，羽色灰褐，嘴部呈粉橙色，腿部橙色。繁殖于沼泽、湿地和湖岸，冬季迁徙至南欧、北非及亚洲南部。社群性强，以家庭为单位迁飞，以草地植被、农作物及水生植物为食。
Black Swan
The black swan was once considered impossible by Europeans who believed all swans were white, making it a famous philosophical example of inductive reasoning failure. It is the state emblem of Western Australia. Black swans form lifelong pair bonds and both parents share in incubation and care of cygnets.