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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 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.
One aberrant species, the black-headed duck, is an obligate brood parasite, laying its eggs in the nests of gulls and coots. While this species never raises its own young, a number of other ducks occasionally lay eggs in the nests of conspecifics (members of the same species) in addition to raising their own broods.
Black-headed duck: Heteronetta atricapilla (Merrem, 1841) 166 Masked duck: Nomonyx dominicus (Linnaeus, 1766) 167 Ruddy duck: Oxyura jamaicensis (Gmelin, JF, 1789) 168 Andean duck: Oxyura ferruginea (Eyton, 1838) 169 Lake duck: Oxyura vittata (Philippi, 1860) 170 Blue-billed duck: Oxyura australis Gould, 1837: 171 Maccoa duck: Oxyura maccoa ...
Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans.
Shang Wheeler Black Duck eBay This 17.5-inch duck decoy by Shang Wheeler is considered a rare gem among collectors, with one selling for nearly $40k at an auction in 2023.
Duck Dynasty debuted with immediate success in 2012 and lasted 11 seasons. A year into its run, the unscripted series was averaging as much as 14.6 million viewers in Live+7 ratings. But as the ...
The black-headed duck of Heteronetta is indisputably quite basal, looking more like a typical duck-like Anatidae with a short tail and normal bill. The masked duck of Nomonyx has a more intermediate position; it probably diverged from the lineage leading to the main radiation some time after Heteronetta.