J. K. Townsend, 1837,
forests of Columbia River = Fort Vancouver, Clarke County, Washington, USA.
Closely related to S. chrysoparia, S. virens, S. townsendi and S. nigrescens; probably the sister-species of S. townsendi, and they have occasionally been considered conspecific. Hybridizes frequently with latter species (producing fertile young); has hybridized also with S. nigrescens. Monotypic.
W USA from coastal mountains of W Washington S to C & S California (including Sierra Nevada). Migrates to non-breeding grounds mainly from N Mexico S to N Nicaragua, casually S to Costa Rica and W Panama; also in smaller numbers to coastal S California.
Food and feeding
Status and conservation
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