A small, plump flycatcher-like songbird with uniform olive-green upperside and entirely lemon-yellow underside. Note the yellow mark between bill and eye, contrasting with a dark line through the eye. Occupies lowland forest and mangroves, typically singly or in pairs. Restricted to the Tanimbar Islands, where there are no other similar small, bright yellow songbirds. Simple song is a series of three high-pitched whistles, “wit-too-wee.” Calls include high, thin “seeE” notes, accentuated at the end.