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The white-headed duck (Oxyura leucocephala) is a small diving duck some 45 cm (18 in) long. The male has a white head with black crown, a blue bill, and reddish-grey plumage. The female has a dark bill and rather duller colouring. Its breeding habitat is lakes with open water and dense vegetation at the margin.
Common name Scientific name and subspecies Range Size and ecology IUCN status and estimated population Blue-billed duck Male Female Oxyura australis Gould, 1837: Australia: Size: Habitat: Diet: LC Ruddy duck Male Female Oxyura jamaicensis (Gmelin, 1789) North and South America (+ British Isles, [5] France, & Spain (introduced)) Size: Habitat ...
Johann Friedrich Gmelin placed it in the genus Anas with the ducks, geese, and swans. Both the male and female have striking plumages: the male has a black head and barred black body and the female has a white head with a chestnut body. They weigh between 1.09 and 2 kg (2.4 and 4.4 lb) and are between 63 and 71 cm (25 and 28 in) in length.
Both male and female are a fairly uniform chocolate-brown above, with rufous flanks and white undersides (which are often not visible if the duck is in the water). The trailing edges and almost the entire underside of the wings are white. In the male, the eyes are a striking white, in the female, brown. [2] [4]
Adult male Chubut steamer ducks have white heads with a bright yellow/orange bill with a black nail [citation needed] Their webs and feet are yellow/orange with black claws. [citation needed] The rest of their plumage includes mostly grey bodies and white bellies. [citation needed] While the male is molting his bill turns to a duller yellow/orange.
Averaging 35.5 cm (14.0 in) and 370 g (13 oz), it rivals the green-winged teal as the smallest American duck. The bufflehead has a wingspan of 21.6 in (55 cm). [7] Adult males are striking black and white, with iridescent green and purple heads and a large white patch behind the eye.
This is a list of the breeds of domestic duck which have official recognition at national or international level. [1]Most breeds of duck derive from the wild mallard, Anas platyrhynchos, while a small minority are descendants of the Muscovy duck, Cairina moschata.
The male is much larger than the female, and has a large black knob on the bill. Young birds are dull buff below and on the face and neck, with dull brown upperparts, top of the head and eyestripe. [ 4 ] [ 9 ] Knob-billed ducks are generally larger in size when compared to comb ducks, and flanks are usually lighter (light grey, in females ...