The Yellow-rumped Cacique is a passerine bird. It breeds in much of northern South America from Panama and Trinidad south to Peru, Bolivia and central Brazil.
It is 30 cm long and weighs about 105 gm. The Yellow-rumped Cacique is a slim bird, with a long tail, blue eyes, and a pale yellow pointed bill. It has mainly black plumage, apart from a bright yellow rump, tail base, lower belly and wing epaulets. The female is duller black than the male, and the juvenile bird resembles the female, but has dark eyes and a brown bill base.