Greater White-fronted Goose vs Red-breasted Merganser
Anser albifrons 对比 Mergus serrator
Side-by-Side Comparison
| 属性 | Greater White-fronted Goose | Red-breasted Merganser |
|---|---|---|
| 学名 | Anser albifrons | Mergus serrator |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 81.6 cm (32.1 in) | 46.7 cm (18.4 in) |
| 体重 | 2471.0 g (87.16 oz) | 1058.3333333333333 g (37.33 oz) |
| 食性 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Dives for small fish, crustaceans, and aquatic invertebrates in coastal and freshwater habitats. Pursues fish … |
| 产卵数 | 3-9 | 6-14 |
| Population Trend | — | — |
Habitat Comparison
共同栖息地
Greater White-fronted Goose only
无
Red-breasted Merganser only
无
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.
Red-breasted Merganser
Male produces a harsh, rasping series of notes; female gives a rough, guttural grunting. The harsh, rattling call is louder than Goosander; pairs and flocks create a rasping coastal cacophony.
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.
Red-breasted Merganser
Circumpolar breeder in boreal and Arctic zones. Winters on coasts and large water bodies south to the Mediterranean and southern Asia.
保护状况
Greater White-fronted Goose
Red-breasted Merganser
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 …
Red-breasted Merganser
Male has dark green shaggy double crest, speckled chestnut breast band, white collar, and grey flanks; red bill. Female has rufous-brown head with ragged crest blending gradually into grey neck …
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.
Red-breasted Merganser
红胸秋沙鸭以雄鸟胸部栗红色鳞状斑纹为特征，嘴橙红色，头部深绿色有冠羽。广泛繁殖于欧亚和北美北部，越冬于温带沿海海湾和内陆水域。在地面或岩缝中营巢，以鱼类为主食，善于合作围捕鱼群。常在沿海越冬，是三种秋沙鸭中最耐盐水的。