Chinchipe Spinetail

The Chinchipe spinetail is 11 to 13 cm (4.3 to 5.1 in) long. It is one of the smallest members of genus Synallaxis. The sexes have the same plumage. Adults have a buffy supercilium on an otherwise blackish face with faint whitish streaks. Their forecrown has black and white streaks. The rest of their crown is dull grayish brown, their back slightly browner, their rump rufescent-brown, and their uppertail coverts bright rufous. The wing has whitish at the bend; the coverts and secondaries are rufous and the primaries dusky. Voice: The Chinchipe spinetail's song is a "short rhythmic phrase consisting of a rising trill followed by a loud squeak and a stuttered monotone trill, rendered tr'r'r'r'up-KSEEP'tra'a'a or turree-TYEE-trrree". It also makes a "rattled series of notes...which may go up and down in pace and pitch". Both vocalizations are often given in duet.