Marie Read / Wood Ducks (Aix sponsa), females behave aggressively toward a male (second from right) that is trying to join them on a floating log, autumn, New York, USA, October.

Marie Read / Wood Duck (Aix sponsa), male flapping its wings, autumn colour reflected in water, Ohio, USA

Rolf Nussbaumer / Wood duck, male on water {Aix sponsa} Texas, USA

Mike Potts / South Georgia pintail (Anas georgica) feeding in a stream, metal and wood in background from old whaling station. Grytviken Harbour. South Georgia.

Bence Mate / Wood ducks {Aix sponsa} Hyde Park, London, UK

LYNN M. STONE / Wood duck (Aix sponsa) drake on Homosassa River, Homosassa, Florida, USA, January

Rod Williams / Male North American Wood Duck (Aix sponsa) in water. Captive. Endemic to eastern USA and southern Canada. UK, March.

Rod Williams / White-winged Duck (Asarcornis scutulata) bathing in water. Captive. Endemic to India, South East Asia. Endangered. UK, August.

Rod Williams / North American Wood Ducks (Aix sponsa) mating on water. Captive. Endemic to eastern USA and southern Canada. UK, March.

Edwin Giesbers / Male Wood duck (Aix sponsa) portrait, on water, captive

Nick Upton / Male Wood duck (Aix sponsa) on water. Captive, WWT, Slimbridge, Gloucestershire, UK, March.

Gerrit Vyn / Wood Duck (Aix sponsa) male vocalizing, standing at waters edge, in spring. King County, Washington, USA, March.