Common Teal vs African Black Duck
Anas crecca 对比 Anas sparsa
Side-by-Side Comparison
| 属性 | Common Teal | African Black Duck |
|---|---|---|
| 学名 | Anas crecca | Anas sparsa |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 36.1 cm (14.2 in) | 49.5 cm (19.5 in) |
| 体重 | 325.0 g (11.46 oz) | 996.8333333333334 g (35.16 oz) |
| 食性 | Dives for molluscs, crustaceans, and aquatic invertebrates; diet dominated by hard-shelled prey in coastal and … | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … |
| 产卵数 | 8-11 | 4-9 |
| Population Trend | — | — |
Habitat Comparison
Common Teal
Breeds on boreal and subarctic freshwater marshes, lakes, and bogs across Eurasia. Winters on freshwater lakes, estuaries, rice paddies, and coastal marshes from northwest Europe and Africa east to Southeast Asia.
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.
Song & Call Comparison
Common Teal
Male gives a ringing, bell-like krick call; female produces a soft, descending quack. The male's crystalline high note is a hallmark sound of Eurasian wetlands; flocks produce a musical tinkling …
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.
Geographic Range & Migration
Common Teal
Breeds in sub-Arctic and boreal Canada and Alaska; winters along the Pacific coast from Alaska to southern California.
African Black Duck
Resident across South and Southeast Asia, from India to southern China and the Philippines. Non-migratory in most of its range.
保护状况
Common Teal
African Black Duck
How to Tell Them Apart
Common Teal
Males have chestnut head with iridescent green eye patch bordered cream. Gray body with horizontal white shoulder stripe. Cream and black undertail. Females mottled brown. Small and fast-flying. Iridescent green …
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 …
About These Birds
Common Teal
绿翅鸭（Anas crecca）是一种小型紧凑的戏水鸭。雄鸟头部栗色，眼周具宽阔的金属绿色条纹，体侧具精细灰色虫状波纹。属鸭科（Anatidae），是最小的戏水鸭之一，广泛繁殖于欧亚大陆，越冬至非洲和南亚。
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.