Neil Aldridge / Martial eagle (Polemaetus bellicosus) preening itself after a summer rainstorm in the central district, Kruger National Park. South Africa. Vulnerable species.

David Pattyn / Martial eagle (Polemaetus bellicosus) perched on a branch. Masai Mara National Reserve, Kenya, Africa, August.

Neil Aldridge / Martial eagle (Polemaetus bellicosus) flying, Kruger National Park, South Africa.

Ann & Steve Toon / Martial eagle (Polemaetus bellicosus) juvenile in flight, Zimanga private game reserve, KwaZulu-Natal, South Africa.

Richard Du Toit / Martial eagle (Polemaetus bellicosus) perched in tree, Kruger National Park, Limpopo Province, South Africa.

Richard Du Toit / Martial Eagle (Polemaetus bellicosus) flying, Karoo National Park; Western Cape Province, South Africa.

Richard Du Toit / Martial Eagle (Polemaetus bellicosus) perched in tree with Blackbacked Jackal (Canis mesomelas) prey, Kruger National Park, South Africa

Sean Viljoen / Slow motion clip of a Martial eagle (Polemaetus bellicosus) taking off, Khwai River, Moremi Game Reserve, Botswana.

Francois Savigny / Martial eagle {Polemaetus bellicosus} with mongoose prey, Kruger NP, South Africa

Christophe Courteau / Martial eagle (Polemaetus bellicosus) feeding on White stork (Ciconia ciconia) Ndutu, near Ngorongoro Conservation Area, Tanzania

Will Burrard-Lucas / Martial eagle (Polemaetus bellicosus) soaring with open wings. Liuwa Plain National Park, Zambia. November

Andy Rouse / Martial Eagle (Polemaetus bellicosus) in tree at sunset. Masai Mara, Kenya, Africa. December.

Andy Rouse / Martial Eagle (Polemaetus bellicosus) in distant tree at sunset. Masai Mara, Kenya, Africa. January.

Andy Rouse / Martial Eagle (Polemaetus bellicosus) in distant tree at sunset. Masai Mara, Kenya, Africa. January.

Neil Aldridge / Martial eagle (Polemaetus bellicosus) preening itself after rainstorm, Kruger National Park, South Africa. Vulnerable.

Neil Aldridge / Martial eagle (Polemaetus bellicosus) preening itself after rainstorm, Kruger National Park, South Africa. Vulnerable.

Neil Aldridge / Martial eagle (Polemaetus bellicosus) preening itself after rainstorm, Kruger National Park, South Africa. Vulnerable.

Graeme Guy / Martial Eagle (Polemaetus bellicosus) with lizard prey, Kruger National Park, South Africa

Sean Crane / Martial Eagle (Polemaetus bellicosus), Okavango Delta, Botswana

Denis-Huot / Martial eagle (Polemaetus bellicosus) Masai Mara Game Reserve, Kenya

Will Burrard-Lucas / Martial Eagle (Polemaetus bellicosus) perched on branch, South Luangwa National Park, Zambia. March.

Lou Coetzer / Fork tailed drongo (Dicrurus adsimilis) mobbing Martial eagle (Polemaetus bellicosus) taking off, Chobe River, Botswana.

Mike Wilkes / Martial eagle (Polemaetus bellicosus) in flight, Serengeti, Tanzania.

Mike Wilkes / Martial eagle (Polemaetus belliscosus) standing on termite mound, Ngorongoro crater, Tanzania.

Patrick Donini / Martial Eagle (Polemaetus bellicosus), Namibia

Walter Soestbergen / Martial Eagle (Polemaetus bellicosus), South Africa

Denis-Huot / Martial eagle (polemaetus bellicosus) Samburu Game Reserve, Kenya

Anup Shah / Martial eagle (Polemaetus bellicosus) on ground with prey, Masai Mara National Reserve, Kenya, July

Winfried Wisniewski / Martial Eagle (Polemaetus bellicosus), Samburu-Isiolo Game Reserve, Kenya

Winfried Wisniewski / Martial Eagle (Polemaetus bellicosus) drinking, Samburu-Isiolo Game Reserve, Kenya

Christophe Courteau / Martial eagle {Polemaetus bellicosus} in flight, Okavango Delta, Botswana, Southern-Africa

Oriol Alamany / Martial eagle (Polemaetus bellicosus) in flight, Kruger National Park, Transvaal, South Africa, September.

Charlie Summers / Martial eagle (Polemaetus bellicosus) in flight overhead, Tarangire National Park, Tanzania

Charlie Summers / Martial eagle (Polemaetus bellicosus) perching on branch, Serengeti National Park, Tanzania, February

Richard Du Toit / Martial Eagle (Polemaetus bellicosus) juvenile taking flight, Kgalagadi Transfrontier Park, Botswana

Richard Du Toit / Martial Eagle (Polemaetus bellicosus) juvenile, Kgalagadi Transfrontier Park, Botswana

Nick Garbutt / Adult Martial Eagle (Polemaetus bellicosus) taking a Helmeted Guineafowl (Numida meleagris) from an Acacia bush. Masai Mara Game Reserve, Kenya.

Tui De Roy / Martial Eagle (Polemaetus bellicosus) flying, Ol Pejeta Conservancy, Kenya

Tui De Roy / Martial Eagle (Polemaetus bellicosus), El Karama Ranch, Kenya

David Noton / Juvenile Martial eagle (Polemaetus bellicosus) feeding on monkey carrion in tree, Kruger National Park, South Africa

Tony Heald / Martial eagle (Polemaetus bellicosus) soaring over the Kalahari, South Africa

John Downer / Martial eagle (Polemaetus bellicosus) swooping down on prey, Zimbabwe, captive

Mary McDonald / Martial eagle {Polemaetus bellicosus} perched, Samburu NP, Kenya

Michele Westmorland / Martial Eagle (Polemaetus bellicosus) Etosha National Park, Namibia

Michele Westmorland / Martial eagle (Polemaetus bellicosus) Etosha National Park, Namibia

Jouan & Rius / Martial Eagle (Polemaetus bellicosus) perched in tree with feathers ruffled, Kgalagadi Transfrontier Park, Kalahari desert, South Africa

Jouan & Rius / Martial Eagle (Polemaetus bellicosus) standing in tree, Kgalagadi Transfrontier Park, Kalahari desert, South Africa

Suzi Eszterhas / Martial Eagle (Polemaetus bellicosus) immature, Masai Mara, Kenya

Richard Du Toit / Martial Eagle (Polemaetus bellicosus) immature, Chobe River, Savuti, Chobe National Park, Botswana

John Downer / Martial eagle head portrait (Polemaetus bellicosus) Bulawayo Zimbabwe, captive

Philippe Clement / Juvenile Martial eagle (Polemaetus bellicosus) Kgalagadi Transfrontier Park, South Africa

Peter Blackwell / Portrait of Martial eagle (Polemaetus bellicosus) calling, Masai Mara NP, Kenya

SIMON KING / Martial eagle {Polemaetus bellicosus} Kenya, East Africa

SIMON KING / Martial eagle {Polemaetus bellicosus} Kenya, East Africa

Pete Oxford / Immature Martial eagle {Polemaetus bellicosus} perching on tree, Chobe National Park, Botswana.

Richard Du Toit / Juvenile Martial eagle {Polemaetus bellicosus}landing, Gemsbok NP, Kalahari, South Africa.

John Downer Productions / Martial eagle flying low (Polemaetus bellicosus) Zimbabwe

Mike Wilkes / Martial eagle {Polemaetus bellicosus} feeding on Bustard Serengeti NP, Tanzania

Anup Shah / Martial eagle juvenile {Polemaetus bellicosus} Samburu NP, Kenya

Shin Yoshino / Martial Eagle (Polemaetus bellicosus) flying over tree tops, Masai Mara, Kenya

Peter Blackwell / Martial eagle portrait, Kenya, East Africa

Peter Blackwell / Martial eagle with prey, Kenya, East Africa

Peter Blackwell / Martial eagle with prey, Kenya, East Africa

Peter Blackwell / Martial eagle feeding on prey, Kenya, East Africa

Richard Du Toit / Juvenile Martial eagle with Gemsbok (Oryx gazella) in background, Kalahari Gemsbok National Park

Peter Blackwell / Martial eagle (Polemaetus bellicosus) with impala kill. Kenya. Masai Mara NR.

Winfried Wisniewski / Martial Eagle (Polemaetus bellicosus), Masai Mara, Kenya

Winfried Wisniewski / Martial Eagle (Polemaetus bellicosus), Masai Mara, Kenya

Winfried Wisniewski / Martial Eagle (Polemaetus bellicosus), Masai Mara, Kenya

Graeme Guy/ BIA / Martial Eagle (Polemaetus bellicosus) with lizard prey, Kruger National Park, South Africa

Mary McDonald / Martial Eagle {Polemaetus bellicosus} striding along shoreline, Lake Nakuru, Kenya

Lisa Asch / Martial eagle juvenile {Polemaetus bellicosus} Masai Mara Kenya

Tony Heald / Martial eagle (Polemaetus bellicosus) perched on branch, looking back, Kruger National Park, South Africa. Endangered.

Suzi Eszterhas / Martial eagle (Polemaetus bellicosus) catching Guinea fowl (Numididae) prey, Ngorongoro Conservation Area, Tanzania. Endangered.

Neil Aldridge / Martial eagle (Polemaetus bellicosus) pecking and scratching at lizard prey whilst panting, Letaba River bank, Kruger National Park, Great Limpopo Transfrontier Park, South Africa.

Neil Aldridge / Martial eagle (Polemaetus bellicosus) perched on the ground panting and pulling flesh off dead Monitor Lizard (Varanus sp.) with its beak, Letaba River bank, Kruger National Park, Great Limpopo Transf...

Neil Aldridge / Martial eagle (Polemaetus bellicosus) perched on ground and feeding, Letaba Riverbank , Kruger National Park in the Great Limpopo Transfrontier Park, South Africa.

Tony Heald / Martial eagle (Polemaetus bellicosus) perched in dead tree, with full crop. Etosha National Park, Namibia. August.

Suzi Eszterhas / Martial Eagle (Polemaetus bellicosus) predating Helmeted Guineafowl (Numida meleagris), Ngorongoro Conservation Area, Tanzania

Suzi Eszterhas / Martial Eagle (Polemaetus bellicosus) predating Helmeted Guineafowl (Numida meleagris), Ngorongoro Conservation Area, Tanzania

Eric Baccega / Martial eagle (Polemaetus bellicosus) perched on branch clutching its prey, a White-faced whistling duck (Dendrocygna viduata), Okavango Delta, Botswana, Africa.

Eric Baccega / Martial eagle (Polemaetus bellicosus) perched on branch clutching its prey, a White-faced whistling duck (Dendrocygna viduata), Okavango Delta, Botswana, Africa.

Guy Edwardes / Martial eagle (Polemaetus bellicosus) taking off from tree. Chobe National Park, Botswana.