Slender Antbird

The slender antbird is 18 to 19 cm (7.1 to 7.5 in) long and weighs 23 to 28 g (0.81 to 0.99 oz). Adults of both sexes have bright red irises. Males have gray crown and upperparts. Their wings and tail are blackish gray with white edges on the tips of the wing coverts. Their face is mostly gray with a paler "moustache". Their throat is black and their underparts mostly pale gray that is darker on their flanks and crissum. Females have a russet crown and nape, a white throat, and paler underparts than males. Their upperparts, wings, and tail are like the male's. Voice: The slender antbird's song is a "very high, loud, increasing series of 7-9 rather sharp 'peer' notes without intervals". Both sexes sing it, with the female starting during the male's song bout. The species' calls include "an abrupt, indistinct compound note sounding like 'brrt', a sharp upslurred 'seep', soft chatters, and short (e.g. 0·9 seconds) chattering rattle that decelerates".