Silver City, New Mexico, USA.
Has been considered conspecific with S. pusilla, but latter appears closer to S. atrogularis. Recently published molecular data indicate that present species is sister to S. breweri, suggesting that plumage similarities to S. pusilla reflect convergence; song reminiscent of that of S. passerina, but genetic work suggests that they are not sister-taxa. Race browni known only from three specimens taken at the type locality (near Sombrerete, in W Zacatecas); may not be valid (and indeed the population in question may no longer be extant), but is provisionally accepted here pending further study. Two subspecies recognized.
Food and feeding
Status and conservation
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