Traditionally considered to form a species-group with P. albicollis and P. polionotus, and all sometimes considered conspecific. Recent molecular study supported relatively close relationship among these three (with albicollis and occidentalis as sister-species)#R; another study, however, found that nominate albicollis grouped with P. polionotus, and present species nestled within a clade containing all other taxa traditionally viewed as subspecies of P. albicollis#R. Monotypic.
W Ecuador (quite local, from S Esmeraldas to W Loja#R) and adjacent NW Peru (Tumbes). Single record from E Andean slope now questioned by its authors.
Food and feeding
Status and conservation
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