Dusky Antbird
Cercomacroides tyrannina
The dusky antbird is 13 to 15 cm (5.1 to 5.9 in) long and weighs 15 to 19 g (0.53 to 0.67 oz). Males of the nominate subspecies C. t. tyrannina are mostly slate gray; their wings and tail are darker and their underparts lighter. They have a white patch between their scapulars and narrow white tips on their wing coverts and outer tail feathers. Their posterior underparts have a clay-colored tinge. Females have a tawny-tinged dark olive-gray crown, upperparts, and wings. They have a very small white interscapular patch. Their wing coverts have cinnamon edges. Their tail is dark grayish brown. Voice: The dusky antbird's song varies somewhat among the subspecies. The male's is generally "a series of relatively short notes at even pitch and pace except for lower-pitched initial and terminal notes". Female's song is typically "a series of long notes rising in pitch followed by series of abrupt notes typically remaining at same pitch".
ID text from Wikipedia, CC BY-SA 4.0
Parker's Antbird
Cercomacroides parkeri
Parker's antbird is 13.5 to 15 cm (5.3 to 5.9 in) long. Males are almost entirely slate gray, with somewhat lighter underparts than upperparts. They have a hidden white patch between their scapulars and narrow white tips on their wing coverts and outer tail feathers. Their flanks have an olivaceous tinge. Females have an olive brown or olive brown tinged gray crown and ear coverts, a paler olive brown supercilium, and gray lores. Their upperparts, wings, and tail are olive brown. They have a very small or no interscapular patch. Their throat and underparts are tawny buff or cinnamon rufous. Voice: The song of the male Parker's antbird is "a muted note followed by higher-pitched, more intense series initially flat in pitch, then descending and accelerating as final notes shorten". Female song is shorter and has a higher pitch and downslurred notes. Its calls include "a rapid sputter of notes and a short, nasal, descending note".
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 Antbird and Parker's Antbird.