About Mionectes olivaceus Lawrence, 1868
The olive-streaked flycatcher (scientific name: Mionectes olivaceus Lawrence, 1868) measures 13 cm (5.1 in) in length, and males and females share identical plumage. Adult individuals have a dark olive face marked with white streaks, and a small triangular white spot behind the eye. Their crown and nape are dark olive, while the rest of their upperparts are warm yellow green. Their wings and tail are dusky olive. The throat and upper breast have dense streaking of dark olive and yellowish white, with thinner white streaks interspersed. The lower breast and flanks are streaked with dark olive and yellow, and the belly is unstreaked yellow. Both sexes have a dark brown iris, a dark brownish gray or black bill that usually has a paler base to the lower mandible, and dark gray or pinkish legs and feet. This species is distributed across most of the highlands of Costa Rica and extends into western Panama. It lives in the interior and edges of humid to wet forest, secondary forest, and plantations in the lower subtropical zone, and favors areas with dense, shady, moist undergrowth like that found in ravines. In Costa Rica, it mostly occurs at elevations between 800 and 2,200 m (2,600 and 7,200 ft), though some individuals on the Caribbean slope descend to as low as 50 m (160 ft) during the non-breeding season. In Panama, it mostly occurs between 500 and 1,600 m (1,600 and 5,200 ft), but there are recorded observations as high as 3,000 m (9,800 ft).
