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The mallard (/ ˈ m æ l ɑːr d, ˈ m æ l ər d /) or wild duck (Anas platyrhynchos) is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa. It has been introduced to New Zealand , Australia , Peru , Brazil , Uruguay , Argentina , Chile , Colombia , the Falkland Islands , and South Africa .
The common goldeneye or simply goldeneye (Bucephala clangula) is a medium-sized sea duck of the genus Bucephala, the goldeneyes. Its closest relative is the similar Barrow's goldeneye . [ 2 ] The genus name is derived from the Ancient Greek boukephalos ("bullheaded", from bous , "bull " and kephale , "head"), a reference to the bulbous head ...
Anatidae: Eurasian teal (Anas crecca), gadwall (Anas strepera), northern pintail (Anas acuta), mallard (Anas platyrhynchos), greater scaup (Aythya marila), long-tailed duck (Clangula hyemalis), northern shoveler (Anas clypeata), garganey (Anas querquedula), Eurasian wigeon (Anas penelope), ferruginous duck (Aythya nyroca), common goldeneye ...
This sociable duck is found in a variety of wetland habitats, and its nesting habits are much like those of the mallard, which is encroaching on its range in New Zealand. [10] It feeds by upending, like other Anas ducks. It has a dark body, and a paler head with a dark crown and facial stripes. In flight, it shows a green speculum and pale ...
The Laysan duck is a poor flyer, but walks and runs well, with a pelvic girdle adapted to terrestrial foraging. Its wings and wing muscles are reduced; it prefers to freeze in place when pursued. Energetic foraging behavior includes a fly-snapping sprint through Neoscatella sexnotata brine fly swarms. With necks outstretched, and bills close to ...
This is supported by the observation that in mallard × American black duck hybrids, females of both taxa prefer the sexually dimorphic mallard drakes over the dull-plumaged black duck drakes; [23] [24] that the green-winged teal is in some aspects—such as the less contrasting nuptial plumage—intermediate between the common and speckled ...
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A female mallard duck incubates her eggs. Egg incubation is the process by which an egg, of oviparous (egg-laying) animals, develops an embryo within the egg, after the egg's formation and ovipositional release. Egg incubation is done under favorable environmental conditions, possibly by brooding and hatching the egg.