E. Snethlage, 1907,
Arumatheua, Rio Tocantins, Brazil.
Hitherto treated as conspecific with C. procurvoides and C. probatus, but differs from both in its blackish head with darker back to tail (1); largely unmarked white throat (1); broader streaking above and below (1); bill darker (ns); and song a series of c. 7–10 notes, with little variation in note length and pitch, thus vs procurvoides showing greater length ratio (3) and pitch ratio (2) in first:last note, and vs probatus showing greater length ratio in first:last note (3) and much faster pace (3)#R. Monotypic.
SE Amazonian Brazil S of Amazon, from R Xingu E to R Tocantins, S to NE Mato Grosso.
Food and feeding
Status and conservation
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