Peter Waechtershaeuser / Changeable Hawk-Eagle (Spizaetus cirrhatus), Sri Lanka

Lucas Bustamante / Crested hawk-eagle (Nisaetus cirrhatus) Yala National Park, Southern Province, Sri Lanka

Eric Sohn Joo Tan/ BIA / Changeable Hawk-Eagle (Spizaetus cirrhatus), Bundala National Park, Sri Lanka

Clement Francis Martin/ BIA / Changeable Hawk-Eagle (Spizaetus cirrhatus), India

Robin Chittenden / Crested hawk-eagle (Spizaetus cirrhatus ceylanensis) perched, Sri Lanka.

Robin Chittenden / Crested hawk-eagle (Spizaetus cirrhatus ceylanensis) perched, Sri Lanka.

Lucas Bustamante / Crested hawk eagle (Nisaetus cirrhatus) perched, Yala National Park, Southern Province, Sri Lanka.

Hanne & Jens Eriksen / Crested hawk eagle (Nisaetus cirrhatus) perched in tree, India, January.

Bernard Castelein / Changeable hawk eagle (Spizaetus cirrhatus), Kaziranga National Park, Assam, India.

Bernard Castelein / Changeable hawk eagle (Spizaetus cirrhatus), Kaziranga National Park, Assam, India.

Ernie Janes / Crested hawk eagle (Nisaetus cirrhatus) immature, Sri Lanka

Ernie Janes / Crested hawk eagle (Nisaetus cirrhatus) immature, Sri Lanka