Cametá, Rio Tocantins, Brazil.
Genetic data#R indicate that this species is sister to S. cherriei (type specimen of which once considered aberrant individual of race amazonica of present species); both are closely related to S. cinnamomea. Distinctive race omissa may be a separate species, but sings like other races. Differentiation and distribution of other races uncertain, and present arrangement tentative; some listed races may not be distinguishable, while small series of specimens from N Bolivia suggests that darkness of plumage coloration varies clinally from W Amazonia to extreme E Bolivia (near type locality of tertia); thorough analysis needed. Seven subspecies recognized.
Food and feeding
Status and conservation
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