Dusky-tailed Antbird
Drymophila malura
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".
ID text from Wikipedia, CC BY-SA 4.0
Ferruginous Antbird
Drymophila ferruginea
The ferruginous antbird is 12 to 13 cm (4.7 to 5.1 in) long and weighs 9.5 to 11.5 g (0.34 to 0.41 oz). Adult males have a black crown, a white supercilium, a wide black band through the eye, and white cheeks with black speckles. Their upperparts are mostly reddish yellow-brown with a (usually hidden) white patch between the scapulars and a rufous rump. Their wings are brownish black with buffish edges on the flight feathers and wide white tips on the coverts. Their tail is black with wide white tips on the feathers. Voice: The ferruginous antbird's song is a "very high, loud, sharp 'tit-tuweéw' (1 x or 3 x without interval)". Its calls include a "rich 'chewp' and short, 'chirring' rattle".
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Dusky-tailed Antbird and Ferruginous Antbird.