Appearance
The male dusky-green oropendola grows to a length of about 42 cm and the female of about 33 cm.The sexes are similar in morphology, the plumage being mainly dark brownish-green or blackish-green, with a rufous-brown rump and crissum.
The beak is greenish-white, there may be a few yellow feathers on the head, and the iris is brown or blue, the latter colour perhaps being in older birds. The russet-backed oropendola, which partly shares the same range, has more rufous upper parts, a yellow forehead and olive-green head which contrasts with its back and wings.
Distribution
The dusky-green oropendola occurs on the east side of the Andes Mountains, its range extending from Huánuco Province in central Peru to Santa Cruz Department in Bolivia. It occurs in montane forests and near their edges at altitudes of between 800 and 2,600 m above sea level, mostly at greater elevations than the russet-backed oropendola.Status
The dusky-green oropendola is a common species with a very wide range. The International Union for Conservation of Nature has classified it as being of "least concern" because, although its forest habitat is being gradually reduced, any decline in the numbers of birds is not at a sufficient rate to justify putting the bird in a more threatened category.References:
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