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Elizabeth Yu: Greater Scaup Photographed in Alamda, CA, USA
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Elizabeth Yu: Greater Scaup?
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Elizabeth Yu: Lesser Scaup, Male non-breeding?
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Elizabeth Yu: Female Lesser or Greater Scaup?
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Elizabeth Yu: Female Greater Scaup
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Elizabeth Yu: I forget what this is!
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Elizabeth Yu: First Winter Male Greater Scaup
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Elizabeth Yu: Greater Scaup
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Elizabeth Yu: Greater Scaup
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Elizabeth Yu: Greater Scaup
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Elizabeth Yu: Greater Scaup