Russet Antshrike

The russet antshrike is 13 to 15 cm (5.1 to 5.9 in) long and weighs about 19 to 24 g (0.67 to 0.85 oz). The species has a rather stocky body and a heavy bill with a hooked tip. The sexes have almost identical plumage. Adults of the nominate subspecies T. a. anabatinus have an olive-yellow supercilium, a dusky line through the eye, and pale olive-brown ear coverts. Their forehead, crown, and upperparts are olive-brown. Their tail is rufous and their wings cinnamon-rufous. Their throat, breast, and belly are pale yellowish olive and their flanks and undertail coverts olive. Voice: The russet antshrike is not highly vocal. All of the subspecies give a "slow song" described as ""a short, countable series (e.g., six notes, two seconds) of abrupt downslurred notes that fall in pitch, preceded by abrupt lower-pitched softer note, e.g., 'tsip-i-tssip' or 'tseep-it-seet' ". Subspecies T. a. aequatorialis also gives a "rapid song", a "loud and penetrating 'teeeu, tseu!-tseu!-tseu!