Luis Quinta / Short toed eagle {Circaetus gallicus} brings snake to chicks in nest, Portugal

Mary McDonald / Crested serpent eagle (Spilornis cheela) eating a snake in tree, Bandhavgarh National Park, Madhya Pradesh, India

Charlie Summers / Black-chested Snake Eagle (Circaetus pectoralis) in flight with snake in beak. Ngorongoro Crater, Tanzania.

Charlie Summers / Black-chested snake eagle (Circaetus pectoralis) in flight with snake in beak. Ngorongoro Crater, Tanzania.

Charlie Summers / Black-chested Snake Eagle (Circaetus pectoralis) taking off, Ndutu, Ngorongoro Conservation Area, Tanzania, East Africa

Vincent Grafhorst / Brown Snake-Eagle (Circaetus cinereus), Makgadikgadi, Botswana

Anup Shah / Black-chested snake eagle (Circaetus pectoralis)perching on a branch . Masai Mara National Reserve, Kenya. March

Tony Heald / Brown Snake Eagle {Ciraetus cinereus} perched on rock, Chobe NP, Botswana

Piper Mackay / Brown snake eagle (Circaetus cinereus) killing a Cobra, Lake Nakuru NP, Kenya

Luis Quinta / Short toed eagles {Circaetus gallicus} bring snake to chick in nest, Portugal

Luis Quinta / Short toed eagle {Circaetus gallicus} chick feeding on snake in nest, Portugal

Ingo Arndt / Short-toed Snake-Eagle (Circaetus gallicus) landing, Masai Mara National Reserve, Kenya

Ingo Arndt / Short-toed Snake-Eagle (Circaetus gallicus), Masai Mara National Reserve, Kenya

Tony Heald / Crested serpent eagle {Spilornis cheela} feeding on snake, Bandhavgarh National Park, India 2007

Peter Blackwell / Black breasted snake eagle {Circaetus pectoralis} Masai Mara, Kenya

Staffan Widstrand / Short toed / Black crested snake eagle {Circaetus gallicus} and flock of White storks {Ciconia ciconia} flying in the thermals, Serengeti NP, Tanzania, East Africa

Jeff Vanuga / Brown snake eagle {Circaetus cinereus} killing a cobra snake. Lake Nakuru National Reserve, Kenya, Africa.

Bernard Castelein / Crested serpent eagle (Spilornis cheela) with snake prey, Ranthambore NP. Rajasthan. India

Tony Heald / Brown snake eagle {Circaetus cinereus} perching in Acacia tree, Kruger NP, South Africa.

Tony Heald / Black-chested snake eagle (Circaetus pectoralis) Kaokoland, Namibia

Tony Heald / Black-chested snake eagle (Circaetus pectoralis) Kaokoland, Namibia

Jose B. Ruiz / Short toed eagle {Circaetus gallicus} brings snake to chicks in nest. Spain