Diet and Hunting:
Most of their diet, as their name would indicate, is made up of snakes. However, they also catch lizards, frogs, toads, large insects, and small birds. Crested Serpent Eagles have also been known to catch eels and crabs.
Crested Serpent Eagle (Spilornis cheela) close up
By Peellden, CC-BY-SA-3.0, via Wikimedia Commons
They still-hunt from a perch, waiting for up to long periods of time before descending to the ground and snatching their prey. They often perch by clearings or streams, and may be hidden or exposed.