Laurie Campbell / Greater Scaup in flight (Aythya marila) two female and one male in flight over water, Lindisfarne NNR, Northumberland, England, December
Gerrit Vyn / Greater scaup duck (Aythya marila) male on water, Seward Peninsula, Alaska, USA June
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Steve Gettle / Greater Scaup (Aythya marila) male flying, Island Lake Recreation Area, Michigan
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Steve Gettle / Greater Scaup (Aythya marila) male flying, Island Lake Recreation Area, Michigan
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Steve Gettle / Greater Scaup (Aythya marila) males flying, Island Lake Recreation Area, Michigan
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Steve Gettle / Greater Scaup (Aythya marila) male in breeding plumage, Saginaw Bay, Michigan
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Steven Kazlowski / Greater scaup (Aythya marila) pair of adult ducks swimming on Kasegaluk lagoon, outside the arctic village of Point Lay, arctic coast of Alaska, USA, June
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David Kjaer / Greater Scaup (Aythya marila) drake or male (first winter) on water by reeds. Gloucestershire, UK, January.
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David Kjaer / Greater Scaup (Aythya marila) drake or male (first winter) on water. Gloucestershire, UK, January.
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Markus Varesvuo / Greater scaup (Aythya marila) pair on water, Iceland, June
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Markus Varesvuo / Male Greater scaup (Aythya marila) on water, Iceland, June
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Markus Varesvuo / Greater scaup (Aythya maritima) flock migrating over water, Estonia, September
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Markus Varesvuo / Greater scaup (Aythya marila) flock migrating, Estonia, September
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Markus Varesvuo / Greater scaup (Aythya marila) and Long-tailed ducks (Clangula hyemalis) flying, Porvoo, Finland, May
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Markus Varesvuo / Male Greater scaup (Aythya marila) flying over water, Iceland, June