Lesser Scaup
Aythya affinis

credit: BS Thurner Hof/CCSA

ADULT MALE Has black head and neck, former appears shiny purple in good light (green in male Greater). Belly and flanks are white and back is gray, palest towards front. Vent is black; note beady yellow eye. Eclipse plumage pattern recalls adult male, but pale elements are buffy. ADULT FEMALE Mainly brown, palest and grayest on back and flanks. White belly is seen in flight. JUVENILE Similar to adult female.

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