The Olive-backed Sunbird (Nectarina jugularis) is a species of sunbird found from Southern Asian to Australia. The sunbirds are a group of small songbirds, at most 12 cm long, which feed largely on nectar, although they will also take insects, especially when feeding young. Highly adaptable, they are the most common Sunbirds in Singapore and are found almost everywhere. The Olive-backed Sunbirds breed in April-August. The eggs take a week to hatch. After the chicks have hatched, both male and female assist in the care of the young, which leave the nest about two or three weeks later.