Wandering Whistling-duck vs Southern Pochard
Dendrocygna arcuata 对比 Netta erythrophthalma
Side-by-Side Comparison
| 属性 | Wandering Whistling-duck | Southern Pochard |
|---|---|---|
| 学名 | Dendrocygna arcuata | Netta erythrophthalma |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 37.2 cm (14.6 in) | 41.6 cm (16.4 in) |
| 体重 | 779.5 g (27.50 oz) | 820.8 g (28.95 oz) |
| 食性 | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | Dives for molluscs, crustaceans, and aquatic invertebrates; eats hard-shelled prey; diet shifts with coastal habitat … |
| 产卵数 | 6-15 | 5-15 |
| Population Trend | — | — |
Habitat Comparison
Wandering Whistling-duck
Tropical freshwater marshes, flooded grasslands, swamps, and lake margins from the Philippines and Indonesia through Papua New Guinea to northern and eastern Australia. Nomadic following wet season flooding.
Southern Pochard
Freshwater and brackish lakes, pans, and marshes in sub-Saharan Africa and separately in Colombia, Venezuela, Peru, and Ecuador. Nomadic in Africa; follows seasonal flooding.
Song & Call Comparison
Wandering Whistling-duck
A soft whistle 'whi-whi-whi' in flight. Less vocal than other whistling-ducks; flocks tend to be quieter. Given at dawn and dusk during flight to roosting or feeding areas.
Southern Pochard
Male gives a harsh, buzzy churr; female produces a series of resonant quacks. The male's buzzy display call is subdued; the female's loud, emphatic quacking dominates African wetland sounds.
Geographic Range & Migration
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
Southern Pochard
Breeds across northern North America; winters along both coasts, the Gulf of Mexico, and in the Caribbean Basin.
保护状况
Wandering Whistling-duck
Southern Pochard
How to Tell Them Apart
Wandering Whistling-duck
Rich chestnut-brown head and neck; dark brown back. Flanks rufous with pale buff streaks and dark spots. Belly blackish. Long, dark pinkish legs. Upright posture typical of whistling-ducks. Sexes similar.
Southern Pochard
Males deep brown with iridescent black head and red eye; pale blue-gray bill with dark tip. Females brown with pale face and pale crescent behind eye. White wing stripe in …
About These Birds
Wandering Whistling-duck
流苏树鸭分布于东南亚至澳大利亚北部的热带地区，包括印度尼西亚、菲律宾和新几内亚。以翼上具浅色流苏状羽毛为特征。体羽褐色，具栗褐色和白色斑纹。栖息于热带淡水湖泊和沼泽，以水生植物和无脊椎动物为食，常在水中觅食，也在树洞中营巢。
Southern Pochard
南非潜鸭是非洲和南美洲（南美亚种）的深水潜鸭，雄鸟头部深栗红色有光泽，眼睛红色，嘴部蓝灰色；雌鸟褐色。分布于撒哈拉以南非洲、马达加斯加及南美洲北部的湖泊和水库。善深潜，以水生植物和无脊椎动物为食。南美亚种（Netta erythrophthalma brunnea）有时被视为独立物种。