Robin Chittenden / Senegal Coucal (Centropus senegalensis) Gambia, March

Charlie Summers / White browed Coucal (Centropus superciliosus) puffed up after preening. Arusha National Park, Tanzania.

Charlie Summers / White browed Coucal (Centropus superciliosus) perched on a dead branch. Arusha National Park, Tanzania.

Charlie Summers / White browed Coucal (Centropus superciliosus) perched on a broken branch. Arusha National Park, Tanzania.

Charlie Summers / Black Coucal (Centropus grillii) in tall grass. Arusha National Park, Tanzania.

Mike Wilkes / Senegal coucal (Centropus senegalensis) perched on log, drying wings, The Gambia, December

Tui De Roy / White-browed Coucal (Centropus superciliosus), Kenya

Pete Oxford / Burchell's Coucal (Centropus burchelli), Kruger National Park, South Africa

Guy Edwardes / White-browed Coucal (Centropus superciliosus) perched in the top of a tree, Lake Manyara National Park, Tanzania, Africa, February

Anup Shah / White-browed Coucal (Centropus superciliosus)perched on branch, Masai Mara National Reserve, Kenya. February.

Vincent Grafhorst / Burchell's Coucal (Centropus burchelli) perching in a tree, Botswana

Richard Du Toit / Coppery tailed coucal (Centropus cupreicaudus) perched with feathers fluffed up, Chobe NP, Botswana, July

Patricio Robles Gil / Burchell's coucal {Centropus superciliosus burchellii} Kruger NP, South Africa

Richard Du Toit / Coppery-tailed Coucal (Centropus cupreicaudus), Chobe River, Namibia

Vincent Grafhorst / Coppery-tailed Coucal (Centropus cupreicaudus) perched in a bush on the Khwai River floodplain, Moremi Game Reserve, Okavango Delta, Botswana

Suzi Eszterhas / White-browed Coucal (Centropus superciliosus) sunbathing, Masai Mara, Kenya

Philippe Clement / Burchell's Coucal (Centropus burchellii) perched on a branch, Kruger NP, South Africa

Gabriel Rojo / Burchell's coucal {Centropus superciliosus burchelli} male, Kruger NP, South Africa

Gabriel Rojo / Burchell's coucal {Centropus superciliosus burchelli} female, Kruger NP, South Africa

Gabriel Rojo / Burchell's coucal {Centropus superciliosus burchelli} female, Kruger NP, South Africa

Paul Hobson / White-browed Coucal {Centropus supercilious} adult perching amongst grass, Tsavo, Kenya.

Paul Hobson / White browed Coucal {Centropus supercilious} adult perching amongst vegetation, Tsavo, Kenya.

Bernard Castelein / White-browed coucal {Centropus superciliosus} Lake Nakuru, Kenya

Tony Heald / White browed coucal {Centropus superciliosus} Laikipia, Kenya

Bernard Castelein / Black chested coucal (Centropus grillii) Serengeti NP, Tanzania

Roger Powell / Pheasant Coucal {Centropus phasianinus} running across track, Northern Territory, Australia.

Roger Powell / Pheasant Coucal {Centropus phasianinus} hunting insects in bush. Northern Territory, Australia.

Luiz Claudio Marigo / Burchell's coucal {Centropus superciliosus burchellii} Umfolozi GR, Natal, S Africa

Roger Powell / Pheasant coucal {Centropus phasianinus} Northern Territory, Australia.

Andrew Parkinson / Senegal coucal in reeds {Centropus senegalensis} Moremi, Botswana

Mike Wilkes / White browed coucal {Centropus superciliosus} Serengeti, Tanzania

Richard Du Toit / Coppery tailed coucal in reeds {Centropus cupreicaudus} Chobe river, Botswana

Richard Du Toit / Coppery tailed coucal (Centropus cupreicaudus). Moremi reserve, Botswana, Southern Africa

Mike Wilkes / Senegal coucal (Centropus senegalensis) on ground, The Gambia, December

Vincent Grafhorst / Coppery-tailed Coucal (Centropus cupreicaudus) perched in a bush on the Khwai River floodplain, Moremi Game Reserve, Okavango Delta, Botswana

Mike Wilkes / Senegal coucal drinking from puddle {Centropus senegalensis} Gambia, West Africa

David Pike / White browed coucal {Centropus superciliosus} Lake Manyara Tanzania

David Pike / White browed coucal {Centropus superciliosus} Lake Manyara Tanzania

David Pike / White browed coucal {Centropus superciliosus} Lake Manyara Tanzania