In the breeding season, they nest in colonies to protect themselves from predators. It is common to see both sexes of the Crested Oropendola sing or call, to attract members of the opposite sex for breeding. Crested Oropendolas feed on insects, seeds, grain, fruits, and nectar. The Crested Oropendola's breeding season is during the months of November through April. They breed in large colonies of 100 or more to scare off predators.
Males show off the color of their feathers and sing to attract as many females as they can.
Female Oropendolas weave spherical nests out of grass and palm fibers. These nests measure from three to six feet in length. The nests can be found in the branches of high isolated trees. Male Oropendolas help to protect these nests during the growth of their offspring. Crested Oropendolas are not endangered.