The Green Oropendola (Psarocolius viridis) is a large South American bird found in the Amazon basin, best known for its, long hanging woven nests – females build bag-like nests that can reach up to 3 feet long, hanging from tree branches. It gets its name from a combination of its appearance and Spanish roots, specifically originating from "oro" (gold) and "péndola" (feather), referring to its vibrant yellow tail feathers, combined with its olive-green plumage. Psarocolius comes from Ancient Greek, combining psar (starling) and koloios (jackdaw). Viridis is Latin for "green". Found across the Amazon basin and Guianas in South America, spanning countries including Brazil, Colombia, Venezuela, and Peru, it inhabits tropical humid forests, preferring undisturbed primary forests, though it can also be found in lowland areas and near rivers. Males are significantly larger than females.
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