Dietmar Nill / Red-crested Pochard (Netta rufina) pair on water, Bavaria, Germany

Graham Eaton / Red crested Pochard (Netta rufina) with head tucked under wing, UK, 2007. Captive bird.

Graham Eaton / Red crested Pochard (Netta rufina) with head tucked under wing, UK, 2007. Captive bird.

Roger Powell / Red-crested Pochard (Netta rufina) Female calling, Tyne and Wear, UK

Roger Powell / Red-crested Pochard (Netta rufina) drakes, Tyne and Wear, UK

Rolf Nussbaumer / Pair of Red-crested Pochard (Netta ruffina) on water, Luzern, Switzerland. April 1995

Rolf Nussbaumer / Male Red-crested Pochard (Netta ruffina) on water Luzern, Switzerland. April 1995

David Kjaer / Red-crested Pochard duck (Netta ruffina) on water, captive UK

Rod Williams / Red crested pochard {Netta ruffina} male, captive, from Eastern europe and Asia

Hanne & Jens Eriksen / Red crested pochard, male {Netta ruffina} Switzerland

Chris O'Reilly / Red crested pochard {Netta ruffina} male, Scotland, UK

Jose B. Ruiz / Male Red crested pochard duck {Netta ruffina} shedding plumage, Spain.