1912 BIRDS OF SOUTHERN CALIFORNIA 93 



L'uninion suninier resident, locally, from the base of the mountains up to 

 about 8500 feet in the canons. Common migrant over the lower country. Breeds 

 mostly in May and June. J. Grinnell has noted this bird near Pasadena as early 

 as March 23 (1895) (Pub. 2, Pasadena Acad. Sci., 1898, 43), and H. S. Swarth 

 took a female near Los Angeles, October 4, 1901. H. A. Gaylord took three 

 slightly incubated eggs near Pasadana, May 9, 1894, and J. Grinnell took three 

 fresh eggs on Pine Flats, 6000 feet altitude in the San Gabriel Range, July 2, 1897 

 (Pub. 2, Pasadana Acad. Sci., 1898, 43). F. E. Blaisdell took a nest and eggs 

 at Povvay, San Diego County, June 11. 1883 (Belding, Land Bds. Pac. Dist., 

 1890, 199). 



313. (629a) Lanivireo solitarius cassini (Xantus). Cassix Vireo. 

 Common along the foothills and on the mesas during' migrations, which occur 



in April and in late September and early October. Breeds numerously in the 

 mountain canons from the foothills up to about 7000 feet, nesting in cottonwpods 

 and white oaks in May and June. Xoted by H. S. Swarth migrating near Los 

 Angeles, the first in the spring, April 3 (1901), the last in the fall. October 13 

 (1898). Found common in siunmer by J. R. Pemberton in Matilija Cafion, Rincon 

 Creek and other localities in the coast range of Ventura County (Condor xii, 

 1910, 18). Extreme nesting records by J. Grinnell are: l^^ive eggs, incubation 

 advanced, taken near Pasadena, May 11, 1895, and three eggs, incubation slight, 

 taken in the same locality. June 26. 1893 ( Pub. 2, Pasadena Acad. Sci., 1898, 44). 



314. (632) Vireo huttoni huttoni Cassin. Hutton Vireo. 

 Common resident of the foothill and mesa regions, also the larger islands of 



the Santa Barbara group. Fairly plentiful over the lower country in winter. 

 Breeds, ordinarily, from early April through May. Extreme nesting records are : 

 Three eggs, fresh, taken by J. Grinnell near Pasadena, March 7, 1896 (Pub. 2, 

 Pasadena Acad. Sci., 1898, 44), and four eggs, fresh, taken by H. A. Gaylord in 

 the same locality, July 15, 1894 (Avifauna i. 1895, 27). 



315. (633a) Vireo belli pusillus Coues. Least Vireo. 



Common in summer in the willow regions from the coast to the foothills. 

 Arrives in late March and early April and leaves mostly during the latter part of 

 August. Breeds generally in the latter part of May. Noted by H. Robertson 

 near Los Angeles as early as March 11 ( 1900), and by J. Grinnell at Pasadena 

 as late as September 8 (1897) (Pub. 2. Pasadena Acad. Sci., 1898, 44). Ex- 

 treme nesting records by H. Robertson near Los Angeles are: Three newly 

 hatched young found A|)ril 1. l')00, aiid set of three eggs taken June 20, 1898. 



316. (634) Vireo vicinior Coues. Gr.w Vireo. 



Fairly common summer resident of the foothills from San Diego County 

 north along the San Jacinto and San 1 Bernardino ranges to Cajon Pass, San 

 Bernardino County. i'\)un(l b}- V. .Stephens to Ije not uncommon in the Cajon 

 Pass, June 4 and 5, and July 1, 1886. A nest found on June 4 contained four 

 slightly incubated eggs. The nest was Iniilt in the chaparral about four feet from 

 the ground ( Morcom, Bull. Ridg. Orn. Club. Xo. 2, 1887, 51). Mr. Stephens 

 also took a nest and four eggs about ten miles east of Riverside. April 26, 1889 



