Cinereous Antshrike
Thamnomanes caesius
The cinereous antshrike is 14 to 15 cm (5.5 to 5.9 in) long and weighs 16 to 18 g (0.56 to 0.63 oz). Adult males of the nominate subspecies T. c. caesius are almost entirely dark gray; the inner edges of their secondaries and their underwing coverts are white. Adult females have olive-brown upperparts with a small white patch between the scapulars. Their wings and tail are olive-brown with a rufous tinge. Their throat is buff, their breast, sides and flanks olive with a tawny-cinnamon tinge, and the center of their belly and their crissum tawny-cinnamon. Voice: The cinereous antshrike's song is a "series, starting with some slow, sharply rising notes, then descending as a short rattle". It has been rendered as "whee? whee? whee? whee-whee-whee-wheep-wheep-whip-whipwhip-p-p-p-p-p-p-prrrrr". Its calls include "a staccato 'wer-chicory' " and "wu-chidididik".
ID text from Wikipedia, CC BY-SA 4.0
Dusky-throated Antshrike
Thamnomanes ardesiacus
The dusky-throated antshrike is 13 to 14 cm (5.1 to 5.5 in) long and weighs 16 to 19 g (0.56 to 0.67 oz). Adult males of the nominate subspecies are mostly darkish gray that is lighter on their belly. They sometimes have a small white patch between their scapulars and often some black feathers on their throat. Their wings and tail are darkish gray with small white tips on the tail feathers. Adult females have dark olive-brown upperparts with more rufous wings and tail. Their throat is buff-white and the rest of their underparts pale buffy ochraceous. Subspecies T. a. Voice: The dusky-throated antshrike's song is "a moderately long series of notes...that gradually become shorter, more intense, and rise in pitch before dropping into final raspy note". It has been written as "grr, grr, grr-grr-gee-gee-gee-geegeegeegigigi greeeyr". Its calls include a short "chirr", a "downslurred raspy note" and a "more abrupt, clearer note". Another call is "a sneezing 'tchif!' ".
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: Cinereous Antshrike and Dusky-throated Antshrike.