Dong Lei / Ruddy shelducks (Tadorna ferruginea) in flight, Basongcuo National Park, Qinghai-Tibet Plateau, Tibet, China.
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Gabriel Rojo / Lake duck (Oxyura vittata) female, La Pampa, Argentina
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Gabriel Rojo / Lake duck (Oxyura vittata), male, La Pampa Argentina
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Gabriel Rojo / Lake duck (Oxyura vittata) two males, La Pampa Argentina
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Gabriel Rojo / Lake duck (Oxyura vittata) two males, La Pampa Argentina
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Gabriel Rojo / Lake duck (Oxyura vittata) two males, La Pampa Argentina
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Gabriel Rojo / Lake duck (Oxyura vittata), male, La Pampa Argentina
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Gabriel Rojo / Lake duck (Oxyura vittata) female, La Pampa, Argentina
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Gabriel Rojo / Lake duck (Oxyura vittata) female, La Pampa, Argentina
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Gabriel Rojo / Lake duck (Oxyura vittata), male and Coscoroba swan, (Coscoroba coscoroba), La Pampa, Argentina
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Alan Murphy/ BIA / Ruddy Duck (Oxyura jamaicensis) male in courtship display, British Columbia, Canada
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Marie Read / Ruddy Duck (Oxyura jamaicensis) male with tail raised during courtship display (bubble display), Bowdoin National Wildlife Refuge, Montana, USA, June.
