Hooded vulture (Necrosyrtes monachus) in mixed juvenile and adult plumage with a prize from a wildebeest kill, Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa

Black-breasted snake eagle (black-chested snake eagle) (Circaetus pectoralis) in flight, immature, Kgalagadi Transfrontier Park, encompassing the former Kalahari Gemsbok National Park, South Africa, Africa

Southern yellow-billed hornbill (Tockus leucomelas) flipping a grasshopper, Kgalagadi Transfrontier Park, encompassing the former Kalahari Gemsbok National Park, South Africa, Africa

Black-breasted snake eagle (black-chested snake eagle) (Circaetus pectoralis), immature, Kgalagadi Transfrontier Park encompassing the former Kalahari Gemsbok National Park, South Africa, Africa

Beautiful sunbird (Cinnyris pulchella), female, Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa

White-breasted cormorant (Phalacrocorax lucidus), Chobe National Park, Botswana, Africa

Beautiful sunbird (Cinnyris pulchella), male, Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa

Rupellss griffon vulture (Gyps rueppellii), Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa

Southern ground-hornbill (ground hornbill) (Bucorvus leadbeateri), male, Kruger National Park, South Africa, Africa

Swallow-tailed bee-eater (Merops hirundineus), Kgalagadi Transfrontier Park encompassing the former Kalahari Gemsbok National Park, South Africa, Africa

Beautiful sunbird (Cinnyris pulchella), female, Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa

Hooded vulture (Necrosyrtes monachus) with wings spread, Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa

Curlew (Numenius arquata). Northumberland, UK

Curlew (Numenius arquata). Northumberland, UK

Black-Headed Ibis, Threskiornis melanocephalus, feeding in Ranthambhore National Park, Rajasthan, Northern India

Black-Headed Ibis, Threskiornis melanocephalus, feeding in Ranthambhore National Park, Rajasthan, Northern India

Australian White Ibis, Sydney, Australia

Black-Headed Ibis, Threskiornis melanocephalus, pair feeding in Ranthambhore National Park, Rajasthan, Northern India

Lappet Faced Vultures, Grumet, Tanzania, East Africa

Lappet Faced Vulture Grumeti, Tanzania, East Africa

Black-Headed Ibis, Threskiornis melanocephalus, in Ranthambhore National Park, Rajasthan, Northern India

American White Ibis, Eudocimus albus, large bird with long curved bill, on Captiva Island, Florida USA

Close-up portrait of two lappet-faced vultures (Torgos tracheliotos) standing on grass, Serengeti National Park, Tanzania, Africa

Portrait of a Cape Buffalo (Syncerus caffer) drinking from river carrying two cattle egrets (Bubulcus ibis) on its back in Chobe National Park, Chobe, Botswana