Plumed Whistling-duck vs Black-headed Duck
Dendrocygna eytoni 对比 Heteronetta atricapilla
Side-by-Side Comparison
| 属性 | Plumed Whistling-duck | Black-headed Duck |
|---|---|---|
| 学名 | Dendrocygna eytoni | Heteronetta atricapilla |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 46.4 cm (18.3 in) | 34.7 cm (13.7 in) |
| 体重 | 877.5 g (30.95 oz) | 528.5 g (18.64 oz) |
| 食性 | Grazes short tundra grasses; also takes aquatic vegetation; large Arctic goose wintering on coastal marshes … | Parasitic; adults may feed on aquatic plants, seeds, and invertebrates in South American marshes. Diet … |
| 产卵数 | 8-14 | 2 |
| Population Trend | — | — |
Habitat Comparison
Plumed Whistling-duck
Grassy tropical wetland margins, flooded plains, and well-watered pastures in northern and eastern Australia. Grazes on land near water at night; rests on open ground or in trees during the day.
Song & Call Comparison
Plumed Whistling-duck
A high, reedy whistling call similar to other Dendrocygna. Plumed Whistling-duck gives 'grassy' grassland calls. Less musical than White-faced; contact notes are short whistles.
Black-headed Duck
Male gives a soft, raspy peeping note; female produces a muted quack. An obligate brood parasite with reduced vocalizations; subdued calls suit its secretive lifestyle among Argentine reeds.
Geographic Range & Migration
Plumed Whistling-duck
Breeds in the Holarctic tundra and boreal zones; winters on temperate coasts and large inland lakes globally.
Black-headed Duck
Resident in southern South America from southern Brazil and Bolivia south to Argentina and Chile. Found on lakes and marshes in open lowlands.
保护状况
Plumed Whistling-duck
Black-headed Duck
How to Tell Them Apart
Plumed Whistling-duck
Pale brown head and neck; chestnut-brown back. Distinctive long, pale golden plumes extend from flanks. Breast pale pink with dark spots. Belly pale. Long pink legs. Upright posture. Sexes similar.
Black-headed Duck
Male has distinctive jet-black head and neck, warm chestnut-brown back, and pale buff underparts; blue-grey bill with red base. Female is streaked brown above with pale supercilium and whitish underparts.
About These Birds
Plumed Whistling-duck
草地树鸭是澳大利亚特有的树鸭，以雄鸟两翼上发达的浅色羽冠著称。体型较大，体羽浅褐色，嘴部粉红色，腿部粉色。广泛分布于澳大利亚北部和东部的草地、稻田和湿地，主要在陆地上觅食草叶和种子，常结大群活动，在树木和灌木丛中栖息。
Black-headed Duck
黑头鸭是南美洲的寄生性鸭子，不自己筑巢，而将卵产于其他水鸟（包括其他鸭类、䴙䴘、红鹭等）的巢中，由寄主孵化并抚育。分布于阿根廷、乌拉圭、智利和巴西南部。雄鸟头部黑色，体羽深褐色；雌鸟头部褐色。是唯一真正的全职巢寄生鸭类。