Rufous-breasted Chat-Tyrant

The rufous-breasted chat-tyrant is 12.5 to 14 cm (4.9 to 5.5 in) long and weighs about 13 g (0.46 oz). The sexes have the same plumage. Adults of the nominate subspecies O. r. rufipectoralis have a sooty brown head with white above the bill that extends into a long wide white supercilium. Their upperparts are brown to sooty brown. Their wings are blackish with faint rufous or cinnamon-buff edges on the secondaries and tertials. Their tail is blackish with thin white edges on the outermost feathers. Voice: The rufous-breasted chat-tyrant's day song differs somewhat among the subspecies. The nominate subspecies' is "a high buzzy phrased followed by a buzzy whistle, in series: tsi'jiot tzee...tsi'jit tzee.... In Colombia it is "an abrupt ch-brrr, ch-brrr, ch-brrr".