American Black Duck vs American Wigeon
Anas rubripes 对比 Mareca americana
Side-by-Side Comparison
| 属性 | American Black Duck | American Wigeon |
|---|---|---|
| 学名 | Anas rubripes | Mareca americana |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 53.4 cm (21.0 in) | 50.6 cm (19.9 in) |
| 体重 | 1211.25 g (42.73 oz) | 938.125 g (33.09 oz) |
| 食性 | Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … | Eats seeds, aquatic plants, and invertebrates; dabbles in shallow water; diet more invertebrate-heavy in breeding … |
| 产卵数 | 1-17 | 3-12 |
| Population Trend | — | — |
Habitat Comparison
American Black Duck
Freshwater and brackish wetlands in eastern North America from Atlantic Canada south along the coast to Georgia. Breeds in northern bogs and wetlands. Winters on coastal marshes, estuaries, and freshwater lakes.
American Wigeon
Breeds on freshwater lakes and marshes in boreal and northern forest of North America. Winters on coastal bays, estuaries, freshwater wetlands, and agricultural fields from the southern United States to Central America.
Song & Call Comparison
American Black Duck
Female produces a loud, deep quacking series; male gives a low, raspy grunt. Voice is deeper and huskier than a Mallard; pairs call powerfully across northeastern North American wetlands.
American Wigeon
Male produces a three-note whew-whew-wheoo whistle; female gives a low grunting purr. The male's clear, looping whistle is distinctive on North American ponds and marshes.
Geographic Range & Migration
American Black Duck
Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.
American Wigeon
Resident across Australia and parts of New Guinea. Sedentary in wetlands; locally nomadic in arid interior zones.
保护状况
American Black Duck
American Wigeon
How to Tell Them Apart
American Black Duck
Sooty dark brown body; head and neck paler buff with dark streaking. Iridescent purple speculum without white border. Males have yellow-green bill; females olive with orange blotches. Silvery underwings in …
American Wigeon
Males have white forehead and crown; iridescent green eye patch; pinkish-buff breast; gray flanks; white belly. White forewing patch in flight. Females mottled brown-gray with gray head. Dimorphic.
About These Birds
American Black Duck
A large dark brown dabbling duck closely resembling a very dark female Mallard, with purple speculum, yellowish-olive bill in males, and orange legs. Common in eastern North America. Hybridizes freely with Mallard; pure populations declining in the interior.
American Wigeon
美洲赤颈鸭是北美常见的水面觅食鸭，雄鸟以栗红色头部和额部乳白色斑纹为特征，体侧粉灰色。广泛繁殖于北美大平原和西北部，越冬于美国南部沿海和中美洲。常在浅水湿地觅食水生植物，也经常跟随潜水鸭（如帆背潜鸭）获取浮到水面的植物。