Greater White-fronted Goose vs Ferruginous Duck
Anser albifrons 对比 Aythya nyroca
Side-by-Side Comparison
| 属性 | Greater White-fronted Goose | Ferruginous Duck |
|---|---|---|
| 学名 | Anser albifrons | Aythya nyroca |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Near Threatened |
| 体长 | — | — |
| 翼展 | 81.6 cm (32.1 in) | 36.5 cm (14.4 in) |
| 体重 | 2471.0 g (87.16 oz) | 594.1666666666666 g (20.96 oz) |
| 食性 | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | -- |
| 产卵数 | 3-9 | 4-17 |
| 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.
Ferruginous Duck
Freshwater lakes, marshes, and river deltas with dense emergent vegetation in southern Eurasia from central Europe east to Central Asia and China. Winters in the Mediterranean, South Asia, and sub-Saharan Africa.
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.
Ferruginous Duck
Male emits a soft, wheeling purr; female gives a harsh, rapid quacking series. The male's quiet purring display call contrasts with the female's repeated, grating notes on Mediterranean marshes.
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.
Ferruginous Duck
保护状况
Greater White-fronted Goose
Ferruginous Duck
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 …
Ferruginous Duck
Rich chestnut-brown head, neck and breast; white undertail conspicuous. White eye in males (brown in females). Dark back. Bold white wing stripe in flight. Compact and rounded. Males brighter chestnut; …
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.
Ferruginous Duck
白眼潜鸭是以雄鸟鲜明白色眼睛命名的中型潜鸭，繁殖于欧洲中部至中亚，越冬于地中海、中东和印度次大陆。雄鸟头颈胸部栗褐色，腹部白色，眼睛白色；雌鸟相似但眼睛褐色。由于湿地丧失和猎捕，被列为近危物种，在部分地区数量大幅下降。