Alan Murphy / Ring-necked Duck (Aythya collaris) male, Texas

Jan Wegener / Ring-necked Duck (Aythya collaris) female, British Columbia, Canada

Alan Murphy / Ring-necked Duck (Aythya collaris) male, Texas

Glenn Bartley / Ring-necked Duck (Aythya collaris) female, British Columbia, Canada

LYNN M. STONE / Ring-necked duck (Aythya collaris) male, swimming on freshwater lake, Lakeland, Florida, USA, January

LYNN M. STONE / Ring-necked duck (Aythya collaris) male, swimming on freshwater lake, Lakeland, Florida, USA, January

Marie Read / Redhead ducks (Aytha americana) with a few Ring-necked ducks (Aytha collaris) mixed in, swimming in a large raft, Cayuga Lake, New York, USA, January

Marie Read / Redhead ducks (Aytha americana) with a few Ring-necked ducks (Aytha collaris) mixed in, large raft, Cayuga Lake, New York, USA, January

Steve Gettle / Ring-necked Duck (Aythya collaris) pair, Crow Island State Game Area, Michigan

Steve Gettle / Ring-necked Duck (Aythya collaris) female, Island Lake Recreation Area, Michigan

Steve Gettle / Ring-necked Duck (Aythya collaris) male in breeding plumage, Island Lake Recreation Area, Michigan

Steve Gettle / Ring-necked Duck (Aythya collaris) male in breeding plumage, Island Lake Recreation Area, Michigan