Rio São Francisco, Minas Gerais, Brazil.
Relationships with A. taciturnus, A. flavirostris and A. semitorquatus, its presumed closest relatives, unclear as species awaits molecular screening#R. Differs from morphologically closest form A. semitorquatus by (in male) the yellow of the lower mandible extending onto sides of upper mandible (2); pale vs darkish grey flanks (1); yellow shading to olive upperparts (1); longer bill (on small published sample; allow 1); shorter tail (on small published sample; allow 1); and notably distinctive song, as indicated in original description (where voice discounted as a taxonomic character owing to small sample, but subsequent unpublished study confirms this evidence; allow at least 2). Monotypic.
S Bahia and N Minas Gerais, in E Brazil.
Food and feeding
Status and conservation
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