Last time when i visited Udawalawa National Park(https://en.wikipedia.org/wiki/Udawalawe_National_Park) i saw this eagle looking curiously at something and then i managed to get the shot on my camera. This eagle is named as “Changeable Hawk-eagle”. The extensive range of the changeable hawk-eagle includes much of the Indian subcontinent and southeast Asia. Their distribution includes nations and areas such as Sri Lanka, Himalayan foothills (Garhwal to Assam), southern Nepal and Bhutan east through Myanmar, Burma, western Laos, southern Vietnam, Cambodia, Thailand and peninsular Malaysia. This eagle has a good sight so it can catch a prey in a long range even. Also the nails/paws are extremely strong which would help them to carry a calf even.
(References : https://en.wikipedia.org/wiki/Changeable_hawk-eagle)
Sri Lanka with Nippa 