Piura Chat-Tyrant

The Piura chat-tyrant is 12 to 12.5 cm (4.7 to 4.9 in) long and weighs about 9 g (0.32 oz). The sexes have the same plumage. Adults have a dark brown crown, a wide white supercilium that begins at the lores and extends well past the eye, and a blackish "mask". Their upperparts are dark brown with a rufescent tinge on the lower back and rump. Their wings are dark brown with two wide rufous wing bars and white edges on the flight feathers. Their tail is dark brown with white outer edges on the outermost feathers. Voice: What is thought to be the Piura chat-tyrant's song is "a thin, high trill" that is similar to that of the crowned chat-tyrant, with which it does not overlap. That song is "a drawn-out rather high-pitched but descending trill, ses-rrrrrrrrrrrrrrrrrrrrrrrrrrrrrr" that lasts several seconds.