Scaup is the common name for three species of diving duck:
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Greater scaup
The greater scaup (''Aythya marila''), just scaup in Europe or, colloquially, "bluebill" in North America, is a mid-sized diving duck, larger than the closely related lesser scaup and tufted duck. It spends the summer months breeding in Iceland ...
, or just "scaup", ''Aythya marila''
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Lesser scaup, ''Aythya affinis''
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New Zealand scaup, ''Aythya novaeseelandiae''
External links
{{Animal common name
Birds by common name