Smew
Photo: Andreas Trepte · CC BY-SA 2.5

Ducks, Swans, and Geese

Smew

Mergellus albellus

LCLeast Concern
Family
Ducks, Swans, and Geese (Anatidae)
Order
Anseriformes

Overview

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).

Summary from Wikipedia, available under CC BY-SA 4.0.

Range and habitat

Northern Eurasia; winters to North Africa, India, and eastern China.

Range description: AviList Global Avian Checklist.

Sources and further reading

Last updated September 29, 2026.