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Distinguishing Characteristics | |
Lesser Scaup | |
![]() | The Lesser Scaup has a bump on the back of its head. |
![]() | The Lesser Scaup is smaller than the Greater Scaup. |
Greater Scaup | |
![]() | The Greater Scaup has a rounded head. |
![]() | The Greater Scaup is larger than the Lesser Scaup. |
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