Arctic regions of Europe.
Has been placed in a monotypic genus, Coprotheres. Relationships uncertain; may be more closely related to Catharacta skua than to either of its two congeners. One study, however, found that present species was sister to a monophyletic genus Catharacta (containing the four presently listed species, below)#R, a relationship supported by recent study of skeletal morphology#R. Monotypic.
Tundra of N Russia, N Alaska and N Canada. Winters at sea close to coasts, mainly between Tropic of Cancer and equator, and around Australia.
Food and feeding
Status and conservation
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