This species also is known in much of the ornithological literature as the Cryptic Antthrush, on account of the fact that this species was for many decades confounded with Rufous-tailed Antthrush (Chamaeza ruficauda), despite obvious differences in vocalizations and, to a lesser extent, in morphology. Such’s Antthrush is endemic to southeast Brazil, where it occurs from southern Bahia south to northeastern Santa Catarina, and is mainly found in humid montane forest between 200 and 1500 m, i.e. it overlaps in elevational range with both Rufous-tailed Antthrush and Short-tailed Antthrush (Chamaeza campanisona), but is to some significant extent intermediate between the higher-ranging Rufous-tailed and the lower-elevation Short-tailed in those areas where they overlap. It was not until the early 1990s that this pattern of staggered elevational ranges among three, rather than two, species of Chamaeza in the Atlantic Forest was realized. The present species’ behavior seems typical of the genus, it being chiefly found on or close to the ground, although the Such’s Antthrush can occasionally be found singing high above the ground in a tall tree.