Olive Oropendola
A species of Oropendolas Scientific name : Psarocolius bifasciatus Genus : Oropendolas
Olive Oropendola, A species of Oropendolas
Botanical name: Psarocolius bifasciatus
Genus: Oropendolas
Content
Description General Info
Description
The sexes of this icterid are very different in size: the male is 52 cm (21 in) long and weighs 550 g (1.2 lbs); the smaller female is 41 cm (16 in) long and weighs 260 g (9.2 oz). Confusingly, the name "olive oropendola" is usually used for this combined species, despite the fact that the nominate subspecies has no olive to its plumage, as its head and chest are black (these are olive in P. b. yuracares). The back, wings and belly of this large oropendola are brown, the outer rectrices are yellow (i.e. tail appears all yellow from below), the bare facial skin is pink, the eyes are brown, and the bill is black with an orange tip. The superficially similar green oropendola has an olive back and wing-coverts, lacks extensive bare facial-skin, has a pale bill with an orange tip, and blue eyes. 
Size
53 cm
Habitat
The habitat of olive Oropendola primarily includes tall, humid terra firme forests and open bamboo forests. These birds dwell in mature forests but also occupy nearby plantations, transitional forests with secondary growth, and river islands. They are typically associated with broadleaf habitats and can be found in areas of white-sand forests. While olive Oropendola has a presence in several diverse vegetative environments, they show a preference for more mature forest ecosystems.
Dite type
Frugivorous
General Info
Behavior
The olive oropendola is a canopy bird that most often is seen flying high over the tops of the trees. Compared to other oropendolas it is a "loner" most frequently seen alone or in pairs, and drawing less attention to itself than its cousins, despite the greater size. Small groups are seen occasionally, and may even mix with other oropendolas. The breeding colonies are small, usually with fewer than five birds. The nest is a hanging woven ball fibers and vines, 60–180 cm long, high in a tree. Relatively little is known about these bird's breeding habits. The omnivorous diet appears to be fairly catholic. They may eat small vertebrates (especially amphibians and reptiles), large insects, nectar, and fruit. They often travel great distances through the forests, except when lingering around their nesting colony. The song of the olive oropendola is a liquid, gurgling and "expanding" stek-ek-ek-ek-eh-eh-eh-o'o 'GLOOP!, given as a displaying male falls forward on a perch and rustles his wings over the back. Nasal raap and whrup calls are given while in flight or when foraging.
Scientific Classification
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