About Hylophilus semibrunneus Lafresnaye, 1845
The rufous-naped greenlet (Hylophilus semibrunneus Lafresnaye, 1845) is 12 to 13 cm (4.7 to 5.1 in) long and weighs approximately 10 to 12.5 g (0.35 to 0.44 oz). Both sexes have identical plumage. Adult individuals have rich rufous coloration on their crown, nape, and ear coverts. Their lores, the area surrounding the eyes, and their 'moustache' are grizzled grayish white. Their upperparts are olive-green. The coverts of their wings are olive-green with paler edges. Their flight feathers and tail are dusky green with olive-green edges. Their throat is whitish, their breast is yellowish white with a rufous-tinged band on its upper portion, and their belly, flanks, vent, and undertail coverts are pale yellowish. They have a dark iris, a pink bill, and leaden blue legs and feet.
The rufous-naped greenlet has a disjunct distribution. It occurs in Serranía del Perijá along the Colombia-Venezuela border, and extends slightly east into Zulia, Venezuela. It is found intermittently across all three ranges of the Colombian Andes, though it is most common in the eastern range. Its distribution also includes sites in Napo Province, northern Ecuador. This species inhabits the interior and edges of primary and secondary forest in the upper foothill and lower subtropical zones, and it also lives in shade coffee plantations. Its elevation range is 450 to 2,000 m (1,500 to 6,600 ft) in Venezuela, 1,000 to 2,800 m (3,300 to 9,200 ft) in Colombia, and 900 to 1,400 m (3,000 to 4,600 ft) in Ecuador.
