Black-chinned Antbird
Hypocnemoides melanopogon
The black-chinned antbird is 11 to 12.2 cm (4.3 to 4.8 in) long and weighs about 12 to 18 g (0.42 to 0.63 oz). Adult males have leaden gray upperparts. Their tail is slate gray with narrow white feather tips. Their flight feathers are leaden gray with lighter gray edges and their wing coverts are black with gray and white edges. Their throat is black. Their underparts are mostly a paler gray than their upperparts and with a grayish white belly. Adult females have the same leaden upperparts as males. Their throat is whitish with black and gray speckles. Voice: One description of the black-chinned antbird's song is "an accelerating, rising series of modulated, rising whistles that descends slightly at the end with much more buzzy notes: whee wee-wee'wee'wi'wi'wiwiwidz'dz'dzee". Another description is a "series of 8-12 high, accentuated 'few' notes, 1st 2-3 evenly-spaced and rising, then as 'djew' notes accelerating and bouncing down".
ID text from Wikipedia, CC BY-SA 4.0
Silvery-cheeked Antshrike
Sakesphoroides cristatus
The silvery-cheeked antshrike is about 14 cm (5.5 in) long. Both sexes have a crest. Adult males of both subspecies have a black forehead, crest, front of the face, throat, and breast center. The rest of their head and underparts are grayish white. Their back is brown. Their wings are black with white tips on the coverts and cinnamon edges on the flight feathers. Their tail is black with white spots and feather tips. Adult females of the nominate subspecies have a rufous forehead, crest, and crown. The rest of their head and their underparts are pale buffy brown. Voice: The subspecies of the silvery-cheeked antshrike have some vocal differences. The loudsong of subspecies S. c. niedeguidonae is "an initial series of sharp notes with frequency modulation (rapid increase and decrease, like an inverted 'U' in shape) followed by a short series of final raspy notes".
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: Black-chinned Antbird and Silvery-cheeked Antshrike.