E. J. O. Hartert, 1909,
Río Salí, Tucumán, Argentina.
Molecular analyses suggest close relationship with A. spragueii, A. furcatus and A. bogotensis; all may belong to a clade with A. lutescens, A. correndera and A. antarcticus. Assertion in HBW that race brasilianus differs “significantly in size, plumage colour and pattern, and voice”, and hence potentially represents a separate species, difficult to reconcile with museum and vocal evidence: it is somewhat smaller (at least 1), with pale markings above buffier and darker markings browner, less grey (1), and underparts slightly buffier, including on vent rather than becoming whitish (1); while on available recordings no differences in song are detectable#R. Race dabbenei possibly inseparable from nominate, but geographically remote. Three subspecies recognized.
Food and feeding
Status and conservation
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