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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.
The breeding male mallard is unmistakable, with a glossy bottle-green head and a white collar that demarcates the head and neck from the purple-tinged brown breast, grey-brown wings, and a pale grey belly. [28] The rear of the male is black, with white-bordered dark tail feathers.
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.
Andean duck Male Female Oxyura ferruginea (Eyton, 1838) Andes Mountains of South America: Size: Habitat: Diet: LC White-headed duck Male Female Oxyura leucocephala (Scopoli, 1769) Spain, North Africa, and western and central Asia: Size: Habitat: Diet: EN Maccoa duck Male. Oxyura maccoa (Eyton, 1838)
The Muscovy is commonly reared for meat. [4]: 78 Mulards from the crossing of a Muscovy duck (Cairina moschata) and a wild-type mallard (Anas platyrhynchos)In commercial production, it is often crossed with a mallard-derived domestic duck such as the Rouen or Pekin to produce the hybrid known as a mulard.
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.
American Pekin flock. The Pekin or White Pekin is an American breed of domestic duck, raised primarily for meat. [6] [7] It derives from birds brought to the United States from China in the nineteenth century, [8] and is now bred in many parts of the world. [6]
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 ...