[Ducks, Geese and Swans of the Pacific Northwest]
Lesser Scaup
Aythya affinis
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Male (left) and female (right) lesser scaup at Crystal Springs: Portland, OR......March 1994.
Male lesser scaup at Crystal Springs: Portland, OR.
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Female (left) and male (right) lesser scaup at Crystal Springs: Portland, OR.
Paul Slichter