Greater White-fronted Goose vs Goosander
Anser albifrons 对比 Mergus merganser
Side-by-Side Comparison
| 属性 | Greater White-fronted Goose | Goosander |
|---|---|---|
| 学名 | Anser albifrons | Mergus merganser |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 81.6 cm (32.1 in) | 54.2 cm (21.3 in) |
| 体重 | 2471.0 g (87.16 oz) | 1488.0 g (52.49 oz) |
| 食性 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Dives for fish, especially salmon and trout, in rivers and lakes. Also takes frogs, crustaceans, … |
| 产卵数 | 3-9 | 4-22 |
| 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.
Goosander
Male gives a harsh, crow-like karrr call; female produces a guttural, grunting series. Both sexes produce loud, nasal calls; the male's harsh croaking is a distinctive winter river sound.
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.
Goosander
Breeds across boreal forests of North America, Europe, and Asia. Winters on coasts and large rivers south to the Mediterranean and South Asia.
保护状况
Greater White-fronted Goose
Goosander
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 …
Goosander
Male has dark green iridescent head, salmon-pink suffused white body, and black back; red serrated bill. Female has rufous-brown head with neat white chin patch, grey body, and pinkish-buff breast.
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.
Goosander
普通秋沙鸭是最大的秋沙鸭，雄鸟头部深绿色有光泽，体羽白色染粉红，嘴和腿橙红色，细长有锯齿；雌鸟头部棕褐色，有冠羽，上身灰色。广泛繁殖于欧亚和北美北部，越冬于温带内陆和沿海水域。以鱼类为主食，是高效的潜水捕鱼者，在树洞中营巢。