Crested serpent eagle, Spilornis cheela (Latham, 1790) of Borneo.

The Crested Serpent Eagle is a medium sized raptor of tropical Asia that favors forests and edges and is often seen soaring above the canopy; adults are dark brown with a small crest yellow facial skin and bold pale bands on wings and tail. Typical size ranges are about 55 to 76 centimeters in length and 109 to 169 centimeters in wingspan. It feeds chiefly on reptiles especially snakes but also takes other small vertebrates and gives carrying whistles during display flights. The species is globally assessed as Least Concern and tolerates moderate habitat alteration where large trees remain. The genus name joins Greek spilos meaning spot and ornis meaning bird while the epithet cheela comes from Hindi cheel a name for kites and hawks. The species was described by Latham in 1790 as Falco cheela.