Rio de Janeiro, Brazil.
Relationships with other members of genus unclear. Hitherto considered conspecific with H. scapularis, but differs from all three races of latter in having olive tinge to its grey back (1) with few or no black maculations (1), as well as distinctive song involving higher frequency (no overlap) than any of the races of H. scapularis (3) and uniquely three slow-paced initial notes (3), total number of notes being fewer but overall length slightly greater, so that pace is much slower; calls too may differ#R. Monotypic.
E Paraguay (E of R Paraguay), extreme NE Argentina (Misiones) and SE Brazil (S Minas Gerais, São Paulo, Rio de Janeiro, Paraná, NE Santa Catarina).
Food and feeding
Status and conservation
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