Breeds in south-eastern Alaska and western Canada (south-western Yukon and north-western and south-eastern British Columbia and western Alberta) and northern USA (western Montana). Non-breeding range south-western USA (Arizona east to western Texas) and probably northern Mexico.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Brewer's Sparrow (Spizella breweri) and Timberline Sparrow (Spizella taverneri) (Sibley and Monroe 1990, 1993) have been lumped into Spizella breweri following AOU (1998).
Considered by some authors to be a subspecies of Brewer's Sparrow (Spizella breweri).