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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 feet are dark grey in males and greyish olive or greyish-brown in females and immatures. The iris is always brown. [17] Moults during summer. Male in eclipse resembles female, but with darker upperparts and grey bill. Flight feathers are moulted simultaneously and birds are flightless for up to 4 weeks. [19] This is a noisy species.
Grey teal shot at Lake Burrumbeet is given emergency care. The grey teal, Anas gracilis, is fully protected in New Zealand. The population was estimated at 20,000 birds in 1976 and has increased to 50,000 in 2005. [10] In 2014 there were about 120,000 grey teal in New Zealand and over 1 million in the world.
The rufous is replaced by a dirty brownish grey in non-breeding and juvenile birds. Juvenile birds have a yellow bill with a small black tip, and black and white streaks on the cheeks and sides of the neck as seen below. This yellow bill darkens as the juveniles age, eventually turning black in adulthood.
The female's crown is gray and the elongated feathers red. The rest of the head is brownish gray with white patches near the bill. The upperparts are grayish brown warming to brown on the rump and the underparts are buffy cinnamon. The juvenile is similar to the female but with more, and richer, brown. [4]
The family Stercorariidae are, in general, medium to large birds, typically with grey or brown plumage, often with white markings on the wings. They nest on the ground in temperate and arctic regions and are long-distance migrants. South polar skua, Stercorarius maccormicki (A) Great skua, Stercorarius skua; Pomarine jaeger, Stercorarius pomarinus
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American black duck; American black swift; American bushtit; American cliff swallow; ... Grey-browed wren; Grey-brown white-eye; Grey-capped cuckoo; Grey-capped ...