Scientific name: Bucephala clangula
Size: Approx 45 - 50cm
Distribution: Found in most parts of the UK in winter, and in the Highlands of Scotland during the summer
Months seen: All year round in parts of Scotland, October to April for the rest of the UK
Life Span: Up to 12 years, more typically 6 years (source BTO)
Habitat: Lakes, reservoirs, estuaries and coastal areas
Food: Aquatic insects and crustaceans
Special features: Although Goldeneye ducks are resident in parts of Scotland, the majority of Goldeneyes are winter visitors from Russia and Scandinavia.
The females have a grey body, white neck and brown head. The males have a white body, black back and green head. The males also have a circular white patch between their golden eye and their short, black bill. They make a distinctive whistling noise as they fly.
Male Goldeneye Ducks put on an entertaining courtship display for the females in late winter where they throw their heads back and sometimes make a faint call. Goldeneye ducks nest in trees close to water.