Anseriformes

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Anseriformes
Temporal range: Upper Cretaceous
66 mya to Recent
Whooper Swan (Cygnus cygnus), a member of the Anatidae
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Superorder: Galloanserae
Order: Anseriformes
Wagler, 1831
Subgroups
Range of the Waterfowl and allies

The order Anseriformes contains about 150 living species of birds in three families: the Anhimidae (the screamers), Anseranatidae (the Magpie Goose), and the Anatidae, which includes over 140 species of waterfowl, among them the ducks, geese, and swans.

All species in the order are highly adapted for an aquatic existence at the water surface. All are web-footed for good swimming. While most live on water, some live mainly on land.