Aythya hybrid; male, probably affinis x valisineria, Choptank River, Maryland

Aythya hybrid; male, probably affinis x valisineria, Choptank River, Maryland

Filename

Scaup_hybrid_20071230-074226_DSC0188.jpg

Copyright

©David Stimac

Image Size

4288x2848 / 6.2MB

Scaup Canvasback Choptank River Maryland hybrid diving duck diver hybridization aythya genes genetic pochard

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