Northern Pintail vs African Black Duck
Anas acuta 对比 Anas sparsa
Side-by-Side Comparison
| 属性 | Northern Pintail | African Black Duck |
|---|---|---|
| 学名 | Anas acuta | Anas sparsa |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 51.3 cm (20.2 in) | 49.5 cm (19.5 in) |
| 体重 | 912.75 g (32.20 oz) | 996.8333333333334 g (35.16 oz) |
| 食性 | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow water; diet dominated by hard-shelled benthic … | -- |
| 产卵数 | 3-12 | 4-9 |
| Population Trend | — | — |
Habitat Comparison
Northern Pintail
Breeds on shallow prairie wetlands, tundra ponds, and arctic meadows. Winters on coastal estuaries, lagoons, rice paddies, and agricultural fields across Europe, Asia, Africa, and North America. Highly migratory.
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
Northern Pintail
Male produces a low, mellow whistle; female gives a hoarse, nasal quack. The male's soft, flute-like call is one of the most distinctive sounds of northern wetlands in spring.
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
Northern Pintail
Breeds in Arctic Canada, Alaska, and Greenland; winters along the coasts of the North Atlantic from Labrador to West Africa.
African Black Duck
保护状况
Northern Pintail
African Black Duck
How to Tell Them Apart
Northern Pintail
Breeding males have chocolate-brown head; white neck stripe extending to breast; gray flanks with long pointed central tail feathers. Females mottled brown with pointed tail and gray bill. Elegant and …
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
Northern Pintail
针尾鸭（Anas acuta）是一种体型大而优雅的戏水鸭，颈部细长。雄鸟头部巧克力褐色，下体白色，背部具精细灰色波纹，中央尾羽极长如针。属鸭科（Anatidae），广泛分布于北半球，越冬于热带地区。
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.