The Olive-backed Oriole (Oriolus sagittatus) is a very common medium-sized passerine bird native to northern and eastern Australia and New Guinea. The most wide-ranging of the Australasian orioles, it is noisy and conspicuous. Not bright in colour, it is olive-backed with small dark streaks, with a light chest having black streaks. Females have cinnamon-edged wings and both sexes have reddish bills and eyes.