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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.
Black Duck (group), an Italian pop music group; Black Duck Software, a software auditing company; Black Duck Joint Venture, a conservation partnership; Black Ducks, a nickname sometimes used for the Swan Districts Football Club
The African black duck (Anas sparsa) is a species of duck of the genus Anas.It is genetically closest to the mallard group, [2] but shows some peculiarities in its behavior [3] and (as far as they can be discerned) plumage; it is accordingly placed in the subgenus Melananas pending further research.
The Pacific black duck (Anas superciliosa), commonly known as the PBD, is a dabbling duck found in much of Indonesia, New Guinea, Australia, New Zealand, and many islands in the southwestern Pacific, reaching to the Caroline Islands in the north and French Polynesia in the east.
A black-bellied whistling duck in the water. The black-bellied whistling duck is a mid-sized waterfowl species. Length ranges from 47 to 56 cm (19 to 22 in), body mass from 652 to 1,020 g (1.437 to 2.249 lb), and wingspan ranges from 76 to 94 cm (30 to 37 in).
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 black-headed duck is the most basal living member of its subfamily, and it lacks the stiff tail and swollen bill of its relatives. Overall much resembling a fairly typical diving duck, [5] its plumage and other peculiarities indicate it may not be a very close relative of the other stiff-tailed ducks, but rather the product of convergent evolution from the ancestors of the stiff-tailed ducks.
The Cayuga is a medium to heavy duck; standard weights are 3.6 kg (8 lb) for adult drakes and 3.2 kg (7 lb) for ducks. [11]: 440 [12]: 412 The plumage is black with iridescent beetle-green lights; particularly in ducks, some feathers may fade or whiten as the bird ages, which can be a disqualifying fault for showing.