Greater White-fronted Goose vs Snow Goose
Anser albifrons 对比 Anser caerulescens
Side-by-Side Comparison
| 属性 | Greater White-fronted Goose | Snow Goose |
|---|---|---|
| 学名 | Anser albifrons | Anser caerulescens |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 81.6 cm (32.1 in) | 82.4 cm (32.4 in) |
| 体重 | 2471.0 g (87.16 oz) | 2561.0 g (90.34 oz) |
| 食性 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Grazes submerged aquatic vegetation and eelgrass in estuaries; also takes grasses and sedges on coastal … |
| 产卵数 | 3-9 | 2-6 |
| 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.
Snow Goose
Breeds on coastal and inland Arctic tundra in Canada, Alaska, and Greenland. Winters on agricultural fields, marshes, and coastal wetlands across the United States and northern Mexico. Forms enormous flocks.
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.
Snow Goose
A loud, nasal barking 'luk-luk' or 'kow-kow'. Large flocks create enormous noise during Arctic nesting and winter staging. Considered a noisy, conspicuous goose.
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.
Snow Goose
Breeds in eastern North America's boreal forest; winters on the Atlantic coast from New England to South Carolina.
保护状况
Greater White-fronted Goose
Snow Goose
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 …
Snow Goose
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.
Snow Goose
雪雁是北美数量最多的雁类之一，繁殖于加拿大北极苔原，越冬于美国南部及墨西哥湾沿岸。有白色和蓝色两种色型，白色型全身白色，翼尖黑色；蓝色型身体灰褐色，头颈白色。迁徙时常形成壮观的数十万只大群，以草地和农田植物为食。