Common blackbird relative found in canopy of lowland forest and edges from Panama to Brazil. Mostly black with bright yellow rump, undertail, and wing patches. Sexes similar. Pale bill is long and pointed; eye is pale blue. Unmistakable in range: the only lowland cacique with extensive yellow plumage. Like many of its relatives, makes a huge variety of calls. Nests colonially, building hanging pouch-shaped nests.