About Hylophilus amaurocephalus (Nordmann, 1835)
The grey-eyed greenlet, Hylophilus amaurocephalus, measures 12.5 to 13 cm (4.9 to 5.1 in) in length. Males and females have identical plumage. Adult individuals have a chestnut-brown forehead and crown, and a pale grayish supercilium; the area around the eye and ear coverts have a gray-white mottled pattern. Their nape and upper back are dull gray-brown, while their lower back, shoulders, and rump are gray-brown with a green tinge. Their wings are gray-brown, with thin greenish edges along the outer webs of the primaries and secondaries. Their tail is gray-green, with brighter edges on the outer webs of its feathers. Their chin is dull whitish, their throat is dull grayish, their flanks are yellowish, and the remaining parts of their underparts are brownish gray. They have light gray to medium gray irises, a gray maxilla, a gray-brown mandible, and dark gray legs and feet.
This species is distributed in northeastern Brazil, ranging from Piauí and Ceará south to São Paulo state. There are also recorded sightings in Beni Department, northern Bolivia, but the South American Classification Committee considers the species unconfirmed in Bolivia. It lives in caatinga, scrublands, brushy pastures, woodlands, and forest edges. Its elevational range extends from near sea level up to 1,800 m (5,900 ft).
