DistributionRead full entry
Range DescriptionThis species is found in the USA and Canada. The nominate subspecies breweri occurs in the arid intermountain west of the USA (stretching north into south-east Alberta and south-west Saskatchewan, Canada) (Rotenberry 1999, Byers et al. 1995). Further north it is replaced by the subspecies S. b. taverneri (Rotenberry 1999, Byers et al. 1995), which occurs into south-eastern Alaska.