Cinnamon-faced Tyrannulet Phylloscartes parkeri

Small yellowish tyrannulet with a narrow reddish facial patch. Usually perches horizontally in the mid-story and canopy of humid montane forest. Olive green above and olive yellow below, with a gray crown; also has thin yellow-green wingbars. Usually travels in pairs, which may be found in mixed-species flocks. Listen for its song, a hyperactive series of high, squeaky chip notes that rises and falls quickly, and its call, a high squeaky “pseet!” that is often doubled.