Sergey Gorshkov / Spurwinged goose (Plectropterus gambensis) flapping its wings, Okavango Delta, Botswana

Rod Williams / Female African Spur-winged Goose (Plectropterus gambensis) head in profile. Captive. Endemic to sub-Saharan Africa. UK, September.

Mark Carwardine / Black spur-winged goose (Plectropterus gambensis niger) portrait, Slimbridge, Gloucestershire, UK, Captive, native to southern Africa

Mark Carwardine / Black spur-winged goose (Plectropterus gambensis niger) head portrait, Slimbridge, Gloucestershire, UK, Captive, native to southern Africa, December

Vincent Grafhorst / Spur-winged Goose (Plectropterus gambensis) flapping its wings, Moremi Game Reserve, Okavango Delta, Botswana

Vincent Grafhorst / Spur-winged Goose (Plectropterus gambensis), Moremi Game Reserve, Okavango Delta, Botswana

Rod Williams / Spur winged goose {Plectropterus gambensis niger} black race, male, captive, from southern Africa