Flammulated Treehunter
Thripadectes flammulatus
The flammulated treehunter is 24 to 25 cm (9.4 to 9.8 in) long and weighs 50 to 62 g (1.8 to 2.2 oz). It is the largest and most strikingly patterned member of its genus. The sexes have the same plumage. Adults of the nominate subspecies have a blackish face and crown with sharp tawny-buff streaks that are rather golden on the crown. Their lores are speckled with blackish and golden buff. Their back is browner than the face and crown, with its blackish only along the feather shafts, and it blends to the rich medium brown rump. Their uppertail coverts are dark reddish brown. Voice: The flammulated treehunter's song is "a series of grating notes that start as a stutter, then accelerates and becomes louder". Its contact call is "an emphatic sharp 'check' ".
ID text from Wikipedia, CC BY-SA 4.0

Uniform Treehunter
Thripadectes ignobilis
The uniform treehunter is 19 to 20 cm (7.5 to 7.9 in) long and weighs between 48 and 51 g (1.7 and 1.8 oz). It is the smallest, darkest, and shortest-billed member of its genus. The sexes have the same plumage. Adults have a vague narrow supercilium and wide eyering that are dull tawny-rufous, blackish brown lores grizzled with pale buff, blackish ear coverts with narrow ochraceous-buff streaks, and a dark brown malar area with lighter blurry streaks and spots. Their crown is dark brown with vague pale spots on the forehead. Their back and rump are slightly paler and redder than the crown. Voice: The uniform treehunter's song is a rather high-pitched "series of 6-8 sharp 'kik' or 'kyip' 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: Flammulated Treehunter and Uniform Treehunter.