This bird has a bright red rump (not visible in the photo) that has given it its name. This can be completely covered when the bird is perched, but is displayed and can be fluffed up during courtship. The red visible in the photo is a fruit that it feeds on. Also note its long, yellow-green bill and blue eye. The species belongs to the American bird family, the troupials. The Red-rumped casique builds its large pendulous nests in collectives that can include 30 pairs or more. Caciques eat large insects and fruit. Most are gregarious and are usually seen in small groups. They are very vocal and have a wide range of calls.