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Latin name

Bucephala clangula

Family

Swans, ducks and geese (Anatidae)

Overview

A medium sized diving duck. Males look black and white with a greenish black head and a circular white patch in front of the yellow eye. Females are smaller, and are mottled grey with a chocolate brown head. In flight, birds show a large area of white on the inner wing. First nested in Scotland in 1970, and since then birds have been attracted to nest in specially designed boxes put up on trees close to water. In winter, birds from Northern Europe visit the UK.

Where to see them

In summer, mainly in Highlands of Scotland. Best looked for in winter on lakes, large rivers and sheltered coasts, particularly in north and west Britain.

When to see them

Summer in the Highlands of Scotland for breeding birds; wintering birds arrive from August to December and return north in February and March.

What they eat

Mussels, insect larvae, small fish and plants

Estimated numbers

* UK breeding is the number of pairs breeding annually. UK wintering is the number of individuals present from October to March. UK passage is the number of individuals passing through on migration in spring and/or autumn.

Distribution

In the UK

Nearly UK-wide (winter); Scottish Highlands (summer)

Please note that the map is only intended as a guide. It shows general distribution rather than detailed, localised populations.

Audio is from commercial recordings Bird Songs and Calls of Britain and Europe on 4 CDs or Bird Sounds of Europe & North-west Africa, copyright WildSounds & CEBA (www.wildsounds.com, (UK) +44 (0) 1263 741100)

2 illustrations 12

Male

Female

Similar birds

Goosander

Smew