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Johann Friedrich Gmelin placed it in the genus Anas with the ducks, geese, and swans. Both the male and female have striking plumages: the male has a black head and barred black body and the female has a white head with a chestnut body. They weigh between 1.09 and 2 kg (2.4 and 4.4 lb) and are between 63 and 71 cm (25 and 28 in) in length.
It is a large duck, with the males about 76 cm (30 in) long, and weighing up to 7 kg (15 lb). Females are noticeably smaller, and only grow to 3 kg (6.6 lb), roughly half the males' size. The bird is predominantly black and white, with the back feathers being iridescent and glossy in males, while the females are more drab.
The Anserinae are a subfamily in the waterfowl family Anatidae.It includes the swans and the true geese.Under alternative systematical concepts (see e.g., Terres & NAS, 1991), it is split into two subfamilies, the Anserinae contain the geese and the ducks, while the Cygninae contain the swans.
Black-necked swan, a large bird of coasts and wetlands. Upland goose, common in Patagonia Chiloe wigeon, breeds in southern and central Chile with some migrating north in winter. Order: Anseriformes Family: Anatidae. Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic ...
Magpie geese are unmistakable birds with their black and white plumage and yellowish legs. The feet are only partially webbed, and the magpie goose feeds on vegetable matter in the water, as well as on land. Males are larger than females. Unlike true geese, their molt is gradual, so no flightless periods result. Their voice is a loud honking.
The African pygmy goose (Nettapus auritus) is a perching duck from sub-Saharan Africa. It is the smallest of Africa's waterfowl, and one of the smallest in the world. [2] Though pygmy geese have beaks like those of geese, they are more related to the dabbling ducks and other species called 'ducks'. [3]
The head and neck are black, with a small white patch on either side of the neck. With a population of about 250000, it breeds on the Arctic coasts of central and western Siberia and winters in coastal areas of western Europe, with over half the population in southern England, the rest between northern Germany and south-western France.
This 45–51 cm duck looks like a small goose, and mostly feeds by grazing in flocks. The male is grey with a dark brown head, mottled breast and very thin white and black stripes on sides/flanks. The female has white stripes above and below the eye and mottled underparts. Both sexes have grey wings with black primaries and a white speculum ...