
Long-tailed Duck
Clangula hyemalis
The Long-tailed Duck is a medium-sized sea duck that breeds on tundra lakes and pools across the Arctic and winters on northern seas, the Baltic being a major wintering area. Males are instantly recognised by their long, pointed tail and striking black-and-white plumage that changes with the seasons. It is a powerful diver that uses its wings underwater. Declines in key wintering areas and drowning in gillnets have led to its assessment as Vulnerable.
Did you know?
- In 2000 the North American name “oldsquaw” was officially replaced by “Long-tailed Duck”.
- It can dive to depths of 60 m or more.
Voice
About the species
Identification
A medium-sized sea duck with a black, brown and white overall look. In late winter and spring the male is easy to recognise by its very long, thin tail streamers and pale cheeks and neck against the darker breast and back; females and young are browner, often with pale cheeks and shorter tails. In flight it shows strong black-and-white contrast and a pale belly; it often calls a yodelling “a-ah-lee”.
Family
Anatidae
Size
Large (crow)
Colours
white, black, brown
About the habitat
Breeds on small lakes, pools and slow streams of the Arctic tundra and fells. In winter cold offshore waters, coasts and large lakes.
Diet
Mainly molluscs such as mussels and snails, crustaceans and small fish, taken by diving, sometimes to great depths.
Behaviour
Highly migratory and gregarious, gathering in huge flocks offshore in winter and on migration. It dives deep, propelled by its wings. Males are very vocal, with a musical, yodelling “a-ah-lee” call. It nests on the ground near water in a down-lined cup; the female lays 5–11 eggs, incubates for about 23–24 days and largely raises the brood.
Sources
Photo: Wolfgang Wander, CC BY-SA 3.0 https://commons.wikimedia.org/wiki/File:Long-tailed-duck.jpg
Sound: Tony Phillips, CC BY 3.0 https://commons.wikimedia.org/wiki/File:Clangula_hyemalis.ogg
Text: Wikipedia (English) + FinBIF species descriptions + Wikipedia (Finnish), CC BY-SA 4.0; FinBIF: CC BY 4.0; Wikipedia: CC BY-SA 4.0 https://en.wikipedia.org/wiki/Long-tailed_duck
