African Black Duck vs White-backed Duck
Anas sparsa 비교 대상 Thalassornis leuconotus
Side-by-Side Comparison
| 속성 | African Black Duck | White-backed Duck |
|---|---|---|
| 학명 | Anas sparsa | Thalassornis leuconotus |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 49.5 cm (19.5 in) | 33.3 cm (13.1 in) |
| 체중 | 996.8333333333334 g (35.16 oz) | 704.6666666666666 g (24.86 oz) |
| 식성 | -- | -- |
| 산란 수 | 4-9 | 4-10 |
| 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.
White-backed Duck
Freshwater lakes, ponds, and swamps with abundant floating aquatic vegetation, especially water lilies, in sub-Saharan Africa and Madagascar. Prefers shallow sheltered water with emergent vegetation for cover.
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.
White-backed Duck
Soft, low whistles and hissing sounds. The White-backed Duck is relatively quiet compared to whistling-ducks. Alarm call is a low 'peep'. Mostly heard at night.
보전 상태
African Black Duck
White-backed Duck
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 …
White-backed Duck
Heavily mottled and barred brown and buff overall. Diagnostic white back patch visible in flight. Head brown with whitish face and chin. Stiff tail held erect. Sexes similar; stiff-tail diving …
About These Birds
African Black Duck
아프리카 검정 오리는 사하라 이남 아프리카의 산간 하천과 개울에 서식하는 중간 크기의 오리입니다. 어두운 갈색 깃털과 흰색 반점이 특징이며, 빠르게 흐르는 물에 적응되어 있습니다.
White-backed Duck
흰등오리는 사하라 이남 아프리카와 마다가스카르의 습지에 서식하는 독특한 잠수 오리입니다. 갈색 줄무늬 깃털과 흰 등, 특이한 납작한 부리가 특징이며, 수생 식물이 무성한 얕은 연못과 호수에 서식합니다.