photographs by Douglas Herr
Anatidae: genus Aythya

Canvasback (Aythya valisineria)
several photographs
Ring-necked Duck (Aythya collaris)
several photographs
Tufted Duck (Aythya fuligula)
several photographs
Greater Scaup (Aythya marila)
Oakland California

all photographs Copyright (C) Douglas Herr
last updated 23 January 2015

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