Greater Scaup female--3100

Greater Scaup male showing diagnostic shape and size of dark upper mandible nail--3039

Greater Scaup female vertical--3096

Greater Scaup female showing diagnostic shape and size of dark upper mandible nail--3057

Greater Scaup pair--3049

Greater Scaup pair #2--3053

Greater Scaup pair #3

Greater Scaup male showing size and shape of dark upper mandible nal--2984

Greater Scaup male showing white wing stripe extended into proximal primaries--2947

Greater Scaup male sleeping, showing rounded head and indented face shape--3042

Greater Scaup male sleeping, showing rounded head and indented face shape #2--3043

Greater Scaup male flap preening after bathing--2971