Crested Oropendola

The crested oropendola, also known as the Suriname crested oropendola or the cornbird, is a striking member of the icterid family. Males are predominantly black with a chestnut rump and a vivid yellow tail, save for two central dark feathers. A distinctive feature is their long, narrow crest, which can be elusive to the observer's eye. The iris of this bird is a captivating blue, and the bill is a pale whitish hue. Females share a similar coloration but are smaller, less vibrant, and lack the male's crest.

Identification Tips

To identify the crested oropendola, look for the male's long crest and the bright yellow of the tail, which contrasts with the black body and chestnut rump. The female is similar but smaller and without the crest. The blue iris and whitish bill are also key identification features.

Habitat

This species is found in the forest edges and clearings, where it can be seen foraging among the trees.

Distribution

The crested oropendola is a resident breeder in lowland South America east of the Andes, ranging from Panama and Colombia south to northern Argentina. It is also present on the islands of Trinidad and Tobago.

Behaviour

A colonial breeder, the crested oropendola constructs an impressive hanging woven nest, often exceeding 125 cm in length, high in the trees. The species exhibits some seasonal movements and is known to be quite mobile outside the breeding season. Dominant males perform an elaborate bowing display to attract females, with a single male mating with most females in a colony.

Song & Calls

The male's song is a distinctive descending call, reminiscent of a hand sliding down a piano's keys. Both sexes emit a loud clack call, which is a notable part of their vocal repertoire.

Breeding

The crested oropendola lays two blotched blue-grey eggs in its pendulous nest. The eggs hatch in 15-19 days, and the young fledge after an additional 24-36 days. Breeding colonies typically consist of 15-30 females and only 3-4 males.

Similar Species

While there are no specific similar species mentioned, it is important to note the differences in subspecies, which vary slightly in plumage details and distribution.

Diet and Feeding

The diet of the crested oropendola includes large insects, fruit, seeds, and some nectar, which they forage for in trees.

Conservation status

The crested oropendola is classified as Least Concern by the IUCN, indicating that it currently faces no significant threats to its survival.