Greater Scaup drake diving to feed (Aythya marila).
Greater Scaup drake (Aythya marila) on the water.
Greater Scaup drake (Aythya marila) on the water.
Large raft of mostly Greater Scaup on Lake Superior at ice-out.
Greater Scaup on water in heavy snowfall.
Greater Scaup drake (Aythya marila) on the water.
Lesser Scaup drake in center. Greater Scaup drakes to either side. Lesser scaup hen in front, right.
Greater Scaup (Aythya marila) pair.
Greater Scaup hen (Aythya marila) on the water.
Greater Scaup (Aythya marila) hens and drakes on the water.
Greater Scaup (Aythya marila).
Greater Scaup (Aythya marila)
Greater scaup drakes
Greater scaup pair in front, lesser scaup to the rear.
Drake Greater scaup with red nasal saddle marker tag, part of an ongoing study on scaup populations.
Greater Scaup (Aythya marila).