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The black-necked swan is the only member of its genus that breeds in the neotropics and is the largest waterfowl native to South America. Adults are 102 to 124 cm (40 to 49 in) long with a wingspan of 135 to 177 cm (53 to 70 in).
The black swan (Cygnus atratus) is a large waterbird, ... but black swans undertake this behaviour less frequently than mute and black-necked swans. ...
The Australian black swan (Cygnus atratus) is completely black except for the white flight feathers on its wings; the chicks of black swans are light grey. The South American black-necked swan has a white body with a black neck. [18]
In April 2020, a record-breaking count of 21,123 black-necked swans was recorded in the sanctuary. [6]In June 2022, the National Forest Corporation (Conaf) noticed a sharp decline in the swan population within the sanctuary, dropping from 22,419 in 2020 to 2,782. [13]
Coscoroba swan: Coscoroba coscoroba (Molina, 1782) 28 Black swan: Cygnus atratus (Latham, 1790) 29 Black-necked swan: Cygnus melancoryphus (Molina, 1782) 30 Mute swan: Cygnus olor (Gmelin, JF, 1789) 31 Trumpeter swan: Cygnus buccinator Richardson, 1831: 32 Tundra swan: Cygnus columbianus (Ord, 1815) 33 Whooper swan: Cygnus cygnus (Linnaeus ...
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 ...
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Cygnus melanocoryphus (Molina 1782) (black-necked swan) LC; Subgenus Wagler 1832 †Cygnus sumnerensis (Forbes 1890) Oliver 1930 sensu Holdaway & al 2001 (New Zealand & Chatham Islands swan) Cygnus atratus (Latham 1790) (black swan) LC; Subgenus Garsault 1764 †Cygnus atavus (Fraas 1870) Mlíkovský 1992 †Cygnus paloregonus Cope 1878