Acre Tody-Tyrant

The Acre tody-tyrant is about 11 cm (4.3 in) long; one male weighed 9 g (0.32 oz). The sexes apparently have the same plumage. Adults have a greenish olive head and nape with darker streaks on the crown. They have tawny lores and a tawny wash on an otherwise greenish olive face. Their back and rump are greenish olive. Their wings are blackish with yellow outer edges and whitish inner edges on the flight feathers. Their wing coverts are black with yellowish tawny edges that show as two wing bars. Their tail feathers are blackish with dark green inner vanes. Voice: The Acre tody-tyrant's song is a trill of "tick" notes similar to songs of other Hemitriccus tody-tyrants though shorter and lower pitched. The trill usually does not have introductory notes. It also makes "single-note skep or keek calls...or lower frequency kup calls" and sometimes combines them.