The olive-backed sunbird (Cinnyris jugularis) is a small passerine bird native to the Indian subcontinent, Southeast Asia, and parts of China. It is a member of the sunbird family, Nectariniidae, and is known for its vibrant, iridescent plumage.
The olive-backed sunbird is a sexually dimorphic species, meaning that males and females exhibit different physical characteristics. Males have a bright, iridescent green back and a yellow throat, while females are more subdued in coloration, with a duller green back and a white or pale yellow throat. Both sexes have a long, slender bill that is adapted for extracting nectar from flowers.