Dusky-green Oropendola

The dusky-green oropendola (Psarocolius atrovirens) is a species of bird in the family Icteridae (New World blackbirds). It is found on the eastern slope of the Andes in Bolivia and Peru. Its natural habitats are subtropical or tropical moist montane forests and heavily degraded former forest. == Description == The male dusky-green oropendola grows to a length of about 42 cm (17 in) and the female of about 33 cm (13 in). The sexes are similar in morphology, the plumage being mainly dark brownish-green or blackish-green, with a rufous-brown rump and crissum (the undertail coverts surrounding the cloaca). 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 appearing in older birds. The russet-backed oropendola (Psarocolius angustifrons), 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 and habitat == 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…