Misión Nueva Pompeya, Chaco, northern Argentina.
Complicated taxonomy and nomenclature: present species cryptic, very similar in plumage to S. subcristata, but since mid-1990s known to differ markedly in vocalizations; form “griseiceps” described from WC Bolivia (Cochabamba) in 1959, but subsequently shown to refer to juveniles of S. subcristata munda; meanwhile, name “griseiceps” was erroneously associated with populations of present species, leading to much confusion#R, until present species formally described, with current name#R (description in issue of journal dated 2007, but in fact first published in May 2008). Monotypic.
NW Argentina (Salta to N Chubut); may breed also in S Bolivia (Tarija); non-breeding visitor to E Bolivia, Paraguay, S Brazil and Uruguay.
Food and feeding
Status and conservation
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