Maroon-belted Chat-Tyrant

The maroon-belted chat-tyrant is 13 to 13.5 cm (5.1 to 5.3 in) long and weighs about 11 to 16 g (0.39 to 0.56 oz). The sexes have the same plumage. Adults of the nominate subspecies have a slaty to blackish head with a white supercilium. Their upperparts and tail are slaty to blackish. Their wings are slaty to blackish with a slight dark brownish tinge. Their throat and upper breast are blackish, the rest of their breast deep chestnut, and their belly and undertail coverts gray. Subspecies O. t. angustifasciata is very similar to the nominate but has a narrower chestnut band on the breast. Voice: The maroon-belted chat-tyrant's song is "a high, descending, whistled tseeew often followed by a squeaky tsee-tsip". Its call is "a chatter, sometimes given in duet: tsee-tsikit tsikit tsikit".