Tim Fitzharris / Redhead Duck (Aythya americana) male, Moses Lake, Washington

John Chan / Male Redhead (Aythya americana) in breeding plumage, preening, Bolsa Chica Ecological Reserve, California, USA, April.

Claudio Contreras / Redhead goby (Elacatinus punticulatus), Espiritu Santo National Park, Sea of Cortez (Gulf of California), Mexico, February

Claudio Contreras / Redhead Goby (Elacatinus punticulatus), Espiritu Santo National Park, Sea of Cortez (Gulf of California), Mexico, February

Lynn M. Stone / Redhead duck (Aythya americana) drake, paddling on Choptank River, Chesapeake Bay Eastern Shore, Maryland, USA February.

Lynn M. Stone / Canvasback duck (Aythya valisineria) and Redhead duck (Aythya americana) hybrid, this drake has orange eyes, intermediate between red of Canvasback and yellow of Redhead and intermediate light gray co...

Charlie Summers / Redhead ducks (Aythya americana) taking off, North Park, Colorado, USA.

Nick Upton / Redhead (Aythya americana) swimming, captive, UK, April.

Nick Upton / Redhead (Aythya americana) female swimming, captive, UK, April.

Steve Gettle / Redhead Duck (Aythya americana) female and male, North Dakota

Alan Murphy / Redhead Duck (Aythya americana) male in courtship display, British Columbia, Canada

Alan Murphy / Redhead Duck (Aythya americana) male, British Columbia, Canada