Drab-breasted Bamboo Tyrant

The drab-breasted bamboo tyrant is about 11 cm (4.3 in) long and weighs 9.5 to 13.5 g (0.34 to 0.48 oz). The sexes have the same plumage. Adults have a plain dark olive-green crown. They have a white spot above the lores and a white eye-ring on an otherwise olive-green face. Their back and rump are plain dark olive-green. Their wings and tail are plain olive though sometimes the innermost secondaries have paler edges. Their throat and breast are mostly dull gray with a pinkish or purplish tinge; there is a faint white crescent between them. Voice: What may be either the song or a call of the drab-breasted bamboo tyrant is a "very high, upslurred, scratchy 'krrru', like a mini-rattle". Other vocalizations include " 'bit', 'sewit' or 'bit-biwít' ".