French: Arlequin plongeur German: Kragenente Spanish: Pato arlequín
America = Newfoundland ex Edwards
Breeds from L Baikal, Siberia, E to Aleutian Is and Alaska, S in USA to SE Idaho and probably N California; E Canada S to Gulf of St Lawrence, Greenland and Iceland; probably Baffin I. In winter reaches waters off Korea, Japan and, in USA, Maryland and N California.
38–51 cm; male 581–750 g, female 485–682 g; wingspan 63–69 cm. Male unmistakable, appearing dark grey-blue and black at distance, with white... read more
Considered to be usually rather silent, but those calls that have been described are all designed... read more
Breeds on swift torrents and rapid streams in rugged uplands, although birds breeding close to... read more
Food and feeding
Mostly molluscs (e.g. gastropods such as Littorina sitkana), crustaceans and, in spring and summer, insects and their larvae/pupae... read more
Starts May/Jun, e.g. egg-laying commences mid May in Iceland, but mostly from last week of May with peak laying in first half of Jun (later... read more
Not truly migratory; in winter disperses along sea coasts within breeding range, with males... read more
Status and conservation
Not globally threatened (Least Concern). Widespread and common, locally abundant species. Protected against hunting and egg-collecting in Iceland and Greenland.... read more
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