Yellow-breasted Sunbird, Kelichap Bukit (Malay)
The Olive-backed Sunbird is very bold and often builds nests close to and even in human habitation (balconies, porches, corridors). Not surprisingly then, it is among the most common Sunbirds in this region.

Sunbirds survive mainly on nectar, although they may snack on the occasional insect. Their nectar extraction equipment include: a long, slender, decurved bill with fine serration along the margins of both mandibles; and a tubular, deeply cleft tongue. Males are particularly territorial and may defend a good feeding site from other Sunbirds.
Male: Metallic blue-black forehead, throat and upper breast, contrasting with bright yellow underparts; upperparts dull olive brown.

Female: Upperparts dull olive brown; underparts all yellow, brighter yellow than other female Sunbirds.