 Greater Scaup (Aythya marila)
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 Greater Scaup & Lesser Scaup, Overholster Lake, OK, 01 18 2022 Ra 013077.jpg
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 Male Lesser Scaup
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 Lesser Scaup with Greater Scaup
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 Scaup comparison.
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Racine Erland November 2023 Lesser or Greater Scaup
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 Greater Scaup
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 Lesser Scaup male Plymouth, MA March 4, 2014 at small Cordage pond [6 of 6]
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 Greater (Aythya marila) & Lesser Scaup (A. affinis)
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 Zooms from previous photo
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