The Epaulet Oriole is widespread in South America, although there is much geographic variation and is found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, and Suriname. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical swamps, subtropical or tropical dryshrubland, and heavily degraded former forest.
In adult males the bill is pointed without any curve and the eyes are dark brown to dark reddish brown. Below the eye is slightly grey and the wing linings are black. The back is also all black. Female epaulet orioles closely resemble males. Juvenile birds resemble adults but their colors are more muted.
The Epaulet Oriole have a varied assortment of harsh calls, and more melodious songs, but also have the unusual behavior of mimicking raptors and other large birds.
The Epaulet Oriole usually lives alone, in pairs and occasionally in flocks. It builds a broad, shallow and fragile nest with wide and dry twigs whose colors make it stand out. One brood per year is typical, although multiple broods may be attempted. Young are likely to fledge 10 to 20 days after hatching and sexual maturity is achieved in the year after hatching.