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The mallard is a medium-sized waterfowl species that is often slightly heavier than most other dabbling ducks. It is 50–65 cm (20–26 in) long – of which the body makes up around two-thirds – has a wingspan of 81–98 cm (32–39 in), [ 25 ] : 505 and weighs 0.7–1.6 kg (1.5–3.5 lb). [ 26 ]
The Mexican duck, a species with a relatively small population experiences gene flow from both the Mottled duck and Mallards. This dilution of pure genes due to the propensity of species within the mallard complex to hybridize and backcross could cause issues for the genetic purity of the species.
Domestic ducks are mostly promiscuous, where wild mallards are monogamous. Domestic ducks have lost the mallard's territorial behaviour, and are less aggressive than mallards. [7] [8] Despite these differences, domestic ducks frequently mate with wild mallard, producing fully fertile hybrid offspring. [9]
Duck is the common name for numerous species of waterfowl in the family Anatidae. Ducks are generally smaller and shorter-necked than swans and geese , which are members of the same family. Divided among several subfamilies, they are a form taxon ; they do not represent a monophyletic group (the group of all descendants of a single common ...
The mottled duck (Anas fulvigula) [note 1] or mottled mallard is a medium-sized species of dabbling duck. It is intermediate in appearance between the female mallard and the American black duck . It is closely related to those species , and is sometimes erroneously considered a subspecies of the former.
The Mariana mallard or Oustalet's duck (Anas oustaleti) is an extinct species of duck of the genus Anas that was endemic to the Mariana Islands.Its taxonomic status is debated, and it has variously been treated as a full species, a subspecies of the mallard or of the Pacific black duck, or sometimes as a subspecies of the Indian spot-billed duck.
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This is a list of the breeds of domestic duck which have official recognition at national or international level. [1]Most breeds of duck derive from the wild mallard, Anas platyrhynchos, while a small minority are descendants of the Muscovy duck, Cairina moschata.