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The American black duck (Anas rubripes) is a large dabbling duck in the family Anatidae.It was described by William Brewster in 1902. It is the heaviest species in the genus Anas, weighing 720–1,640 g (1.59–3.62 lb) on average and measuring 54–59 cm (21–23 in) in length with an 88–95 cm (35–37 in) wingspan.
American black duck: Anas rubripes: 700,000 [99] LC [99] [99] No global population estimate given. [99] Common pochard: Aythya ferina: 760,000-790,000 [100] VU [100 ...
The American black duck (Anas rubripes), for instance may have double white bars above and below the speculum due to either the retention of ancestral genetic material or due to gene flow from the Mallard (Anas platyrhynchos). Pure American black duck male. Among North American members of the complex, using genetic data sets (with over 3000 ...
A. p. poecilorhyncha Forster 1781 (Indian spot-billed duck) Anas zonorhyncha Swinhoe 1866 (Chinese spot-billed duck) LC; Anas platyrhynchos Linnaeus 1758 (mallard) LC. A. p. conboschas Brehm 1831 (Greenland mallard) A. p. platyrhynchos Linnaeus 1758 (European mallard) Anas rubripes Brewster 1902 (American black duck) LC; Anas diazi Ridgway 1886 ...
Eastern spot-billed duck: Anas zonorhyncha Swinhoe, 1866: 102 Mallard: Anas platyrhynchos Linnaeus, 1758: 103 Mottled duck: Anas fulvigula Ridgway, 1874: 104 American black duck: Anas rubripes Brewster, 1902: 105 Mexican duck: Anas diazi Ridgway, 1886: 106 Cape teal: Anas capensis Gmelin, JF, 1789: 107 White-cheeked pintail: Anas bahamensis ...
The Black Duck Joint Venture is a conservation partnership established in 1989 to stabilize and restore the population of the American black duck (Anas rubripes). [1] [2] It consists of government and non-governmental agencies and organizations in Canada and the United States. [3]
The mountain bluebird is the state bird of Idaho. This list of birds of Idaho includes species documented in the U.S. state of Idaho and accepted by the Idaho Bird Records Committee (IBRC). As of January 2022, there were 433 species on the official list. One additional species is considered hypothetical. Of the 433, 180 are review species in part or all of the state.(see note) [notes 1] Eight ...
Order: Anseriformes Family: Anatidae The family Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, bills which are flattened to a greater or lesser extent, and feathers that are excellent at shedding water due to special oils.