
Mergellus albellus
John James Audubon, Birds of America (1827-1838). Public domain.
Showing primary migration corridor(s) for this species
The smew (Mergellus albellus) is a species of duck and is the only living member of the genus Mergellus. The genus is closely related to Mergus and is sometimes included in it; genetic studies have shown that it is the sister taxon to Mergus and Lophodytes. The smew has hybridised with the common goldeneye (Bucephala clangula).
Source: Wikipedia
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