1912 BIRDS OF SOUTHERN CALIFORNIA 47 



the more remote parts of southern California. B. W. Evermann found the 

 Red-bellied Hawk not uncommon in the vicinity of Santa Paula, Ventura 

 Count}-, where he found their nests in sycamores, cottonwoods, live oaks and 

 willows, near the borders of streams (Bendire, Life Hist. N. A. B., 1892, 227). 

 There are still a few pairs breeding in the willow groves of Los Angeles County, 

 but they are becoming scarcer every year. F. Stephens took a set of three 

 partially incubated eggs in San Timoteo Canon fifteen miles east of Colton, 

 April 7, 1882 (Bendire, Life Hist. N. A. B., 1892, 227). C. S. Sharp found 

 two fresh eggs near Escondido, San Diego County, March 6, 1904, and noted 

 a nest which contained two young, a few days old, in the same locality, July 

 4. 1906 (Condor vin, 1906, 147). 



159. (340) Buteo abbreviatus Cabanis. Zone-tailed Hawk. 



Rare straggler to the extreme southern end of the state. Recorded as 

 follows: Male taken by J. G. Cooper thirty miles north of San Diego, Feb- 

 ruary 23, 1862 (Land Birds Cal.. 1870, 480), now no. 4375 collection Uni- 

 versity of California Museum of Vertebrate Zoology. Immature male taken 

 by C. B. Linton near National City, San Diego County, November 26, 1906 

 (Condor x, 1908, 181), now no 16490 collection J. E. Thayer. Fnsexed speci- 

 men taken by W. J. McClosky thirty miles north of San Diego, September 10, 

 1907 ( Grinnell, Condor xi, 1909, 69), now no 5494 collection University of 

 California Museum of Vertebrate Zoology. 



160. (342) Buteo swainsoni Bonaparte. Swainson Hawk. 



Common in spring, summer and fall from the foothills to the ocean. Mi- 

 grates south in September and October and returns in March and early April. 

 According to L. Belding, winters occasionally in the vicinity of San Diego 

 (Land Birds Pac. Dist., 1890, 36). F. S. Daggett found the species common 

 on Catalina Island August 1 to 16, 1898, and took one specimen. Eggs are 

 generally deposited during the latter part of April and first part of May. 

 Antonin Jay took three fresh eggs in the San Fernando Valley, Los Angeles 

 County, April 24, 1898, and W. L. Chambers took three fresh eggs near Santa 

 Monica the first day of June (Grinnell, Pub. 2, Pasadena Acad. Sci., 1898, 

 22). 



161. (348) Archibuteo ferrugineus(Lichtenstein). Ferruginous Rough- 

 leg. 



Frequently seen. Most common in the fall. J. G. Cooper took two speci- 

 mens near Saticoy, Ventura County, in winter and saw many more (Auk iv, 

 1887, 91). J. S. Appleton took a male in Simi Valley, Ventura County, Feb- 

 ruary 17, 1912. H. S. Swarth has seen the birds occasionally in the San Fer- 

 nando and Cahuenga valleys, Los Angeles County, in fall and winter. He 

 took a female at the summit of Cahuenga Pass, October 4, 1897, and noted 

 several birds near Los Angeles, October 16, following (Condor n, 1900, 16). 

 In the University of California Museum of Vertebrate Zoology are three speci- 

 mens of this bird taken in southern California, as follows : Female collected 

 by J. G. Cooper at San Pedro, October 24, 1861 ; male, also collected by Dr. 



