Welcome to Marin County Parks

Guide to selected species of:

Marin County

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Common Goldeneye, male
credit:  Calibas/CCSA

       
Duck-like Birds

Common Goldeneye  Bucephala clangula

Family: Ducks and Geese, Anatidae
Audio: Martyn Stewart, © Naturesound.org

Description  ADULT MALE Has mainly black and white plumage. Rounded, peaked head appears dark in poor light, but iridescent green in sunshine. Note beady yellow eye and striking white oval patch at base of bill. Eclipse male resembles an adult female, but retains his more striking white wing pattern. ADULT FEMALE Gray-brown body plumage separated from dark brown head by pale neck. Note beady yellow eye. JUVENILE Similar to adult female, but with dark eye.

Dimensions  Length: 16-20" (41-51 cm)

Habitat  Common and widespread. In summer, found on wooded lakes, nesting in tree holes. In winter, commonest on coasts, although also found on ice-free inland lakes across region.

Range  Plains, Great Lakes, Alaska, Western Canada, Florida, Rocky Mountains, Mid-Atlantic, Southwest, Southeast, Eastern Canada, New England, California, Texas, Northwest

Voice  Displaying male utters squeaky calls. Otherwise silent.

Discussion  Robust diving duck. Both sexes are similar to their Barrow's counterpartsósee that species' description for differences. In flight, white on inner upper wings is more extensive in male than female.