Anatidae

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. These birds are adapted for swimming, floating on the water surface, and in some cases diving in at least shallow water. The family contains around 146 species in 43 genera. (The magpie goose is no longer considered to be part of the Anatidae and is now placed in its own family, Anseranatidae.)

<span class=Harlequin Duck " title="Harlequin Duck " />
The Harlequin Duck (Histrionicus histrionicus) is a small sea duck from the family of water birds that includes ducks, geese, and swans (Anatidae).
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