Dusky-tailed Antbird

The dusky-tailed antbird is 13 to 14.5 cm (5.1 to 5.7 in) long and weighs 11 to 13 g (0.39 to 0.46 oz). Adult males' head and neck are streaked with black and whitish gray. Their upperparts are gray with a white patch between the scapulars; the white feathers have black tips. Their flight feathers are brownish and their wing coverts blackish with white tips. Their tail is brownish gray. Their throat and breast are streaked black and white and their flanks and crissum are olive-brown. Females' crown, nape, and sides of the neck have heavy dark brown and buff to olive-brown streaks. Voice: The dusky-tailed antbird's song is a "very high series starting with 'tsip tsip', then accelerating and slightly descending to a rattling trill." Its calls include "short...thin, buzzy (modulated), somewhat high-pitched notes, repeated after short intervals, and harsher note with clearer ending".