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mallard |
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mallard: see duck duck, common name for wild and domestic waterfowl of the family Anatidae, which also includes geese and swans. It is hunted and bred for its meat, eggs, and feathers. Strictly speaking, duck refers to the female and drake to the male. ..... Click the link for more information. . mallardAbundant “wild duck” (Anas platyrhynchos, family Anatidae) of the Northern Hemisphere, ancestor of most domestic ducks. The mallard is a typical dabbling duck in its general habits and courtship display. The drake of the common mallard (subspecies A. p. platyrhynchos) has a metallic green or purplish head, reddish breast, and light-gray body; the hen is mottled yellowish brown. Both sexes have a yellow bill and a purplish blue, white-bordered wing mark. Males and females of the Greenland mallard (A. p. conboschas) also differ markedly in plumage. In the other subspecies, both sexes resemble the female common mallard. Mallards are found throughout most of Asia, Europe, and northern North America. mallard a duck, Anas platyrhynchos, common over most of the N hemisphere, the male of which has a dark green head and reddish-brown breast: the ancestor of all domestic breeds of duck How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In Table 1, morbidity, mortality, and virus isolation data for Mongolia/05 H5N1 HPAI virus from mallard ducks were omitted. In laboratory experiments in mallard ducks, it rapidly shifted from being potentially fatal to causing only asymptomatic infections. According to the Fish and Wildlife Service, a study in the mid-1990s found that the nationwide ban on the use of lead shot for waterfowl hunting has resulted in an estimated 64 percent reduction in lead poisoning deaths of mallard ducks. |
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