Greater White-fronted Goose vs Greater Scaup
Anser albifrons 对比 Aythya marila
Side-by-Side Comparison
| 属性 | Greater White-fronted Goose | Greater Scaup |
|---|---|---|
| 学名 | Anser albifrons | Aythya marila |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 81.6 cm (32.1 in) | 42.7 cm (16.8 in) |
| 体重 | 2471.0 g (87.16 oz) | 984.0 g (34.71 oz) |
| 食性 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Eats molluscs, crustaceans, and aquatic invertebrates in coastal and freshwater habitats; diet shifts between invertebrate … |
| 产卵数 | 3-9 | 4-12 |
| Population Trend | — | — |
Habitat Comparison
共同栖息地
Greater White-fronted Goose only
无
Greater Scaup only
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.
Greater Scaup
Breeds on tundra and boreal lakes in the Arctic and subarctic across Eurasia and North America. Winters in large numbers on coastal bays, estuaries, and large lakes in temperate regions.
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.
Greater Scaup
Male gives a low, purring wheeze; female produces a harsh, rolling quacking sequence. Calls are very similar to Lesser Scaup but slightly lower-pitched; heard on open ocean bays in winter.
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.
Greater Scaup
Breeds in the high Arctic of North America; winters offshore on the Atlantic coast from Labrador to South Carolina.
保护状况
Greater White-fronted Goose
Greater Scaup
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 …
Greater Scaup
Males have glossy green-black rounded head; white flanks and belly; black breast and undertail; gray back. Yellow eye. Bill blue-gray. Females dark brown with white face patch around bill. Longer …
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.
Greater Scaup
斑背潜鸭是广泛分布于全北区的大型潜鸭，繁殖于北极苔原和亚北极地带，越冬于温带沿海水域。雄鸟头部黑绿色有光泽，背部灰白色带细密横纹，胸腹黑色；雌鸟褐色。善潜水，以软体动物、甲壳类和水生植物为食，常在沿海湾和内陆大湖集群越冬。