African Black Duck illustration
Birdsong field guide

African Black Duck

Anas sparsa

A large, secretive river duck characterized by its dark plumage and prominent white barring on its back. It is uniquely adapted to fast-flowing, wooded watercourses throughout sub-Saharan Africa.

What it sounds like

A loud, harsh 'quack' from the female, similar to a Mallard but more rapid; the male produces a soft, thin whistle.

Reference call, compare with what you heard
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Rec. Nature sounds by Simply Birding · South AfricaCC BY-NC-NDXeno-canto

Field notes

  • Unlike many waterfowl, this species is highly territorial and typically remains in pairs, aggressively defending specific stretches of river.
  • The distinctive white patches on its back provide effective camouflage by mimicking dappled sunlight on moving water.
  • It is primarily nocturnal or crepuscular, often spending the brightest parts of the day hiding under overhanging riverbank vegetation.
  • It is one of the few duck species specifically adapted to fast-moving, rocky mountain streams rather than stagnant wetlands.
  • Despite being a 'dabbling duck,' it is a powerful swimmer capable of navigating heavy currents and small rapids.
Habitat
Fast-flowing perennial rivers and wooded streams, especially in montane or hilly terrain.
Range
Sub-Saharan Africa, ranging from Ethiopia and Sudan southwards to the Western Cape of South Africa.

Similar & commonly confused birds

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