Crested Oropendola Identification Guide

Key Field Marks

• Size & shape: A large, long-tailed member of the blackbird family (Icteridae), noticeably bigger than a grackle, with a heavy, pointed bill.
• Plumage: Overall glossy black body with a contrasting chestnut/maroon rump and central tail feathers, while the outer tail feathers are bright yellow — very obvious in flight or when the tail is fanned.
• Bare parts: Pale blue eyes and a mostly black bill with a reddish-orange tip.
• Crest: Thin, wispy black feathers on the crown form a subtle crest that is easy to overlook in the field.
• Sexes: Males are considerably larger than females, though plumage is similar in both.

Separating It From Similar Species

• Other oropendolas (e.g., Russet-backed, Chestnut-headed): Differ in the extent of chestnut coloring, bill color, and bare facial skin — check overall body color pattern and bill pattern.
• Yellow-rumped Cacique: Smaller, with yellow confined to the rump and wing patches rather than the tail, and lacks the oropendola's long wedge-shaped tail.
• Great-tailed Grackle: All-black with a much longer, keel-shaped tail and no yellow tail patches.

Where & When to See It

• Range: Panama through Colombia, Venezuela, the Guianas, Trinidad, and Amazonian South America south to Bolivia, Paraguay, and northern Argentina.
• Habitat: Forest edges, clearings, riverine woodland, and plantations, often near colonial nest trees.
• Season: Resident throughout its range; not migratory.

Voice & Behavior

• Song: A loud, liquid, gurgling series of notes, delivered while the male performs a bowing display with wings raised and tail fanned.
• Nesting: Highly colonial, building long, pendulous woven nests — often over a meter long — that hang in clusters from tall trees.
• Diet: Fruit, nectar, and insects, often foraged in the forest canopy.