Christophe Courteau / Black Crake {Amaurornis flavirostra} wading in lily pond, Okavango Delta, Botswana.

Ann & Steve Toon / Black crake (Amaurornis flavisrostra) feeding on fish, Kruger National Park, South Africa, May 2011.

Richard Du Toit / Black Crake (Amaurornis flavirostris) wading, Kruger National Park, South Africa

Gabriel Rojo / Black crake {Amaurornis flavirostra} Kruger NP, South Africa

Gabriel Rojo / Black crake {Amaurornis flavirostra} walking on lilypad, Kruger National Park, South Africa

Richard Du Toit / Black crake {Amaurornis flavirostra} Kruger NP, South Africa

Richard Du Toit / Black crake (Amaurornis flavirostra) and oxpeckers feeding on hippo. Moremi reserve, Botswana, Southern Africa

Mike Wilkes / Black crake (Amaurornis flavirostra) perched on branch sticking out of water, amongst waterlilies, The Gambia, May