Small, olive flycatcher. Grayish-olive above with paler belly. Shows two prominent whitish wingbars. White eyering is usually bold and slightly wider behind the eye. Most easily identified by voice: a loud "che-BEK, che-BEK" often repeated in bursts. Found in a variety of wooded or shrubby habitats during summer, migration, and winter. Active, often changing perches as it forages for insects, occasionally flicking its wings and tail.