Notes on the Plumage of North American Birds 99 



It is restricted to the Pacific coast region from northern Lower CaUfornia north 

 to Oregon. While it presents practically no variation in color with age, sex, or 

 season, it varies considerably with locality, four races of it being recognized. 

 Since they are non-migratory, the purposes of field identification will best be 

 served by outlining their distribution as it is given in Dr. Grinnell's recent, 

 authoritative 'Distributional List of the Birds of California' as follows: 



Pallid Wren-Tit (Ckamcea fasciata henshawi). Common resident of the 

 Upper Sonoran Zone west of the deserts and Great Basin drainage from the 

 Mexican line through the San Diegan district, northward coastwise to San 

 Luis Obispo and San Benito counties, and interiorly along the western foothills 

 of the Sierra Nevada to the lower McCloud River, in Shasta County; also 

 along the inner northern coast ranges from Helena, Trinity County, and Scott 

 River, Siskiyou County, south to Covelo, Mendocino County, and Vacaville, 

 Solano County. The easternmost stations for this form are: vicinity of 

 Walker Pass, Kern County, and Campo, San Diego County. 



Intermediate Wren-Tit (ChamcBa fasciata fasciata). Common resident of 

 the coast region south of San Francisco Bay, from the Golden Gate to southern 

 Monterey County; east to include the Berkeley hills and at least the west 

 slopes of the Mount Hamilton range. 



Ruddy Wren-Tit (C ham aa fasciata rufula). Common resident of the humid 

 coast belt immediately north of San Francisco Bay, in Marin, Sonoma, and 

 Mendocino counties. Northernmost station for this form: Mendocino City. 



Coast Wren-Tit {ChamcBa fasciata phcea) . Fairly common resident locally 

 in the extreme northern humid coast belt. Humboldt and Del Norte Counties. 



