African Black Duck
Anas sparsa
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<birdfyi-bird slug="anas-sparsa"></birdfyi-bird>Bold white spotting across a blackish-brown back distinguishes the African Black Duck (Anas sparsa), a medium-sized member of the family Anatidae. The plumage carries an iridescent blue-green speculum bordered in white, and the sexes are alike; the bill is dark and the legs orange. The species is a fast-water specialist, holding territory along rocky rivers, mountain gorges and waterfalls from sea level to about 4,000 m across sub-Saharan Africa, from Ethiopia and Kenya south to the Cape, where it requires clear turbulent water broken by boulders. Pairs are monogamous and defend stretches of river against intruders. Recorded birds average about 997 g with a wingspan near 49.5 cm. The IUCN Red List rates the species Least Concern.
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について
アフリカンブラックダックはサハラ以南のアフリカの急流河川に生息する特殊なカモです。暗褐色の羽毛と白い斑点が特徴で、水流の速い清澄な渓流を好みます。繁殖期には縄張り意識が強く、ペアで生活します。急流の水生昆虫や甲殻類を主食とします。
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| 翼開長 | 49.5 cm | 19.5 in |
| 体重 | 996.8333333333334 g | 35.16 oz |
識別
羽毛
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 river specialist.
Habitat & Range
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.
保全状況
行動と繁殖
営巣
Incubation: 25-28 days. Fledging: 86 days.
一腹卵数
4-9
鳴き声
さえずり
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.
分類学
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| 目 | Anseriformes (Waterfowl) |
| 科 | Anatidae (Ducks, Geese & Swans) |
| Genus | Anas |
| 種 | Anas sparsa |
Distribution
African Black Duck has been recorded in 5 countries.
countries highlighted
External Databases
よくある質問
Where does the African Black Duck live?
Is the African Black Duck endangered?
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What does the African Black Duck sound like?
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Similar Birds
Other species in the Anatidae family