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The International Ornithological Committee (IOC) recognizes these 174 Anatidae species distributed among 53 genera, 32 of which have only one species. Eight species on the list are extinct; they are marked (E). [1] This list is presented according to the IOC taxonomic sequence and can also be sorted alphabetically by common name and binomial.
The Anatidae are the biological family of water birds that includes ducks, geese, and swans. The family has a cosmopolitan distribution , occurring on all the world's continents except Antarctica. These birds are adapted for swimming , floating on the water surface, and, in some cases, diving in at least shallow water.
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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. Most modern species in the ...
The related and extant families, Anhimidae and Anatidae (ducks, geese and swans), contain all the other taxa. [ 1 ] A cladistic study of the morphology of waterfowl found that the magpie goose was an early and distinctive offshoot, diverging after screamers and before all other ducks, geese and swans.
Anatidae is the biological family that includes the ducks and most duck-like waterfowl, such as geese and swan.These are birds that are modified for swimming, floating on the water surface, and in some cases diving in at least shallow water.
The Anatinae are a subfamily of the family Anatidae (swans, geese and ducks). Its surviving members are the dabbling ducks , which feed mainly at the surface rather than by diving . The other members of the Anatinae are the extinct moa-nalo , a young but highly apomorphic lineage derived from the dabbling ducks.
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