1912 BIRDS OF SOUTHERN CALIFORNIA 109 



nearly complete, in the upper Santa Ana Canon, San Bernardino Mountains, June 

 12, 1906 (Univ. Calif. Publ. Zool. v, 1 ( )08, 132). 



374. (763a) Ixoreus naevius meruloides (Swainson). Northern 

 Varied Thrush. 



Usually fairly common in winter from the foothills to the coast and on the 

 Santa Barbara Islands. South at least to San Diego County. Some winters 

 much less plentiful than others. Particularly common wherever the "California 

 holly" grows abundantly. Noted by H. S. Swarth in the Arroyo Seco above 

 Pasadena, as early as October 23 (1900), and by J. Grinnell near Pasadena, as 

 late as April 10 ( 1897) (Pub. 2, Pasadena Acad. Sci., 1898, 51 ). Found common 

 at Riverside during February, 1907, by H. E. Wilder, and several specimens 

 taken by H. W. Marsden at Witch Creek, San Diego County, in January and 

 February, the same year. Pair noted by F. E. Blaisdell in the Yolcan Mountains, 

 San Diego County, in November (Belding, Land Bds. Pac. Dist., 1890, 260). 

 Several specimens taken by C. B. Linton on San Clemente Island, from January 

 to April, 1907 (Condor x, 1908, 86). 



375. (767) Sialia mexicana occidentalis J. K. Townsend. Western 

 Bluebird. 



Common summer resident from the foothills up to over 10,000 feet in the 

 mountains, south to Los Angeles County. Common in winter over the lower 

 country, south to Lower California. Breeds mostly in May. Male taken by C. B. 

 Linton on San Clemente Island in December, 1908. I have found this bird breed- 

 ing plentifully in the hills of northern Santa Barbara County, J. S. Appleton re- 

 ports it a common breeder in the Simi Valley, Ventura County, and it is plent 1 

 ful in summer in the mountains of Los Angeles County, from 2000 feet to the 

 summits, occasionally nesting at lower altitudes. Extreme nesting dates are : Six 

 eggs, considerably incubated, taken by E. Simmons near Newhall, Los Angeles 

 County, May 4, 1897, and four eggs, incubation slight, taken by H. A. Gaylord 

 near Pasadena, May 24, 1892 (Grinnell, Pub. 2, Pasadena Acad. Sci.. 1898, 52). 



376. (767b) Sialia mexicana anabelae Anthony. San Pedro Bluebird. 

 According to the A. O. U. Check-List, this sub-species ranges from the 



mountains of southern Los Angeles County, southward. The bluebirds of the 

 extreme southern end of the state are intermediate between this form and the last, 

 and are not typical of either. Robert Ridgway says "Specimens from San Diego 

 County and southern Los Angeles County, are much nearer this form than they 

 are to occidentalis" (Bds. N. & Mid. Am. iv, 1907, 151). This bird is an 

 abundant breeder in the San Bernardino and San Jacinto Mountains and, accord- 

 ing to L. Belding, breeds commonly in the timbered parts of San Diego County 

 (Land Bds. Pac. Dist., 1890. 262). 



377. (768) Sialia currucoides (Bechstein). Mountain Bluebird. 

 Breeds in the higher mountains, mostly on the eastern slope, south to the San 



Bernardino Range. More or less common in the lower country in winter, south 

 to Lower California. Breeds in May. Recorded by B. W. Evermann as a rare 

 winter visitant to Ventura County. He saw a single individual near Saticoy in 



