Greater White-fronted Goose vs Bufflehead
Anser albifrons 对比 Bucephala albeola
Side-by-Side Comparison
| 属性 | Greater White-fronted Goose | Bufflehead |
|---|---|---|
| 学名 | Anser albifrons | Bucephala albeola |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 81.6 cm (32.1 in) | 32.2 cm (12.7 in) |
| 体重 | 2471.0 g (87.16 oz) | 400.5 g (14.13 oz) |
| 食性 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Dives for aquatic insects, crustaceans, and small molluscs in freshwater and coastal habitats. One of … |
| 产卵数 | 3-9 | 5-14 |
| Population Trend | — | — |
Habitat Comparison
Greater White-fronted Goose
Breeds on Arctic and subarctic tundra and peatlands. Winters on estuaries, agricultural fields, freshwater marshes, and flooded meadows across Europe, Asia, and North America. One of the most widespread geese.
Song & Call Comparison
Greater White-fronted Goose
A loud, laughing 'kow-lyuk' or musical 'wah-wah'. Gives a distinctive high-pitched yodeling quality lacking in Greylag. Highly vocal in large winter flocks.
Bufflehead
Male produces a soft, squeaky whistle; female gives a harsh, nasal quack. The male's thin, reedy whistle is barely audible; pairs exchange quiet contact calls at boreal forest ponds.
Geographic Range & Migration
Greater White-fronted Goose
Breeds in the potholes region of the northern Great Plains; winters in the southern United States and along the Gulf Coast.
Bufflehead
Breeds in boreal forest of western and central North America. Winters along both coasts and interior lakes from southern Canada south to Mexico.
保护状况
Greater White-fronted Goose
Bufflehead
How to Tell Them Apart
Greater White-fronted Goose
Brown-gray body with white forehead patch bordered by white band at bill base. Underparts with bold irregular black bars on belly. Orange bill; orange-yellow legs. Juveniles lack white front and …
Bufflehead
Male has iridescent green-purple head with a large triangular white patch from behind eye over crown; body clean white except for black back. Female is dark sooty-brown with a single …
About These Birds
Greater White-fronted Goose
A medium-large goose with a white forehead patch, orange bill, grey-brown plumage, and variable black barring on the belly. Widespread and numerous; one of the most abundant geese in the world. Breeds across the high Arctic; winters in a wide range of temperate wetland and agricultural habitats.
Bufflehead
白枕鹊鸭是北美最小的潜鸭之一，雄鸟头部黑绿色有光泽，枕部具大型白斑，体羽黑白分明；雌鸟褐色，脸侧有白斑。繁殖于加拿大和阿拉斯加的针叶林湖泊，在啄木鸟挖凿的树洞中营巢。越冬于沿海海湾和内陆水库，以水生昆虫和无脊椎动物为食。