Bernard Castelein / Crested serpent eagle ( Spilornis cheela), Keoladeo NP, Bharatpur, India

Robin Chittenden / Crested serpent eagle (Spilornis cheela spilogaster) in flight, Sri Lanka.

Ashish & Shanthi Chandola / Crested serpent eagle (Spilornis cheela) perched, Bandipur Tiger Reserve, Karnataka, India. July

Hanne & Jens Eriksen / Crested serpent eagle (Spilornis cheela) in flight, India, January.

Loic Poidevin / Crested serpent eagle (Spilornis cheela) on branch. Kaziranga National Park, Assam, India.

Loic Poidevin / Crested serpent eagle (Spilornis cheela) on branch. Kaziranga National Park, Assam, India.

Suzi Eszterhas / Crested Serpent eagle (Spilornis cheela) roosting at night, Danum Valley Conservation Area, Sabah, Borneo, Malaysia *Digitally removed twig in background

Andrew Parkinson / Crested Serpent Eagle (Spilornis cheela) adult with crest erect. Bandhavgarh National Park, India.

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

Mary McDonald / Crested serpent eagle (Spilornis cheela) perched in tree, Bandhavgarh National Park, Madhya Pradesh, India, March

David Noton / Crested serpent eagle (Spilornis cheela) in tree, Wilpattu National Park, Sri Lanka

Bernard Castelein / Crested serpent eagle (Spilornis cheela), Keoladeo Ghana NP, Bharatpur, Rajasthan, India