African Black Duck vs Southern Pochard
Anas sparsa 对比 Netta erythrophthalma
Side-by-Side Comparison
| 属性 | African Black Duck | Southern Pochard |
|---|---|---|
| 学名 | Anas sparsa | Netta erythrophthalma |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 49.5 cm (19.5 in) | 41.6 cm (16.4 in) |
| 体重 | 996.8333333333334 g (35.16 oz) | 820.8 g (28.95 oz) |
| 食性 | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … | Dives for molluscs, crustaceans, and aquatic invertebrates; eats hard-shelled prey; diet shifts with coastal habitat … |
| 产卵数 | 4-9 | 5-15 |
| Population Trend | — | — |
Habitat Comparison
African Black Duck
Fast-flowing rocky rivers and streams, mountain gorges, and waterfalls from sea level to 4,000 m across sub-Saharan Africa from Ethiopia and Kenya south to the Cape. Requires clear turbulent water with boulders.
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
African Black Duck
Produces a harsh, resonant quacking call; alarm is a loud, emphatic quack repeated rapidly. Both sexes call with strong quacking; pairs duet with synchronized calls along African rivers.
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
African Black Duck
Resident across South and Southeast Asia, from India to southern China and the Philippines. Non-migratory in most of its range.
Southern Pochard
Breeds across northern North America; winters along both coasts, the Gulf of Mexico, and in the Caribbean Basin.
保护状况
African Black Duck
Southern Pochard
How to Tell Them Apart
African Black Duck
Dark blackish-brown plumage with bold white spots on back and scapulars. Iridescent blue-green speculum with white borders. Head dark with pale spots. Bill and legs dark gray. Sexes similar. Fast-flowing …
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
African Black Duck
A medium-sized dark brown duck with white spots on the back, a dark bill, and orange legs. Found along fast-flowing rocky rivers and streams in Africa. Territorial and monogamous; pairs defend stretches of river. Related to Pacific Black Duck.
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。