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.

Where the Yellow Oriole specialises in damp, thickly vegetated habitats in the tropical far north, the Olive-backed Oriole is more versatile, preferring more open woodland environments, and tolerating drier climates (but not desert). Common to very common in the north, Olive-backed Orioles are less frequently seen in the south, but nevertheless reach as far as south-eastern South Australia. Their range is from the very north of Western Australia across the east and south coasts to Victoria and the corner of South Australia. Most birds breed during the tropical wet season, but some migrate south to breed in the southern summer.

Nesting, Lake Samsonvale, SE Queensland