46 PACIFIC COAST AVIFAUNA No. 7 



and took another set, also of five fresh eggs, in the same locality, April 11, the 

 same year (Grinnell, Pub. 2, Pasadena Acad. Sci., 1898, 20). A. M. Inger- 

 soll informs me that from 1887 to 1892 he saw White-tailed Kites frequently 

 in the vicinity of San Diego and knew of two pairs nesting in that region. Of 

 late years he finds them very scarce. He took two slightly incubated eggs near 

 National City, March 24, 1890, and five, slightly incubated, in the same local- 

 ity, April 25, following. 



154. (331) Circus hudsonius (Linnaeus). Marsh Hawk. 



Common resident of the lowlands, especially on the salt marshes near the 

 coast. Breeds mostly in late March and early April. I took a set of eight eggs 

 advanced in incubation, near Bay City, Orange County, April 7, 1910, and O. 

 W. Howard took a set of five eggs, two-thirds incubated, at Alamitos Bay, Los 

 Angeles County, April 21, 1906. H. C. Burt took an immature male of this 

 species on Anacapa Island, March 15, 1911 (Condor xiii, 1911, 166). 



155. (332) Accipiter velox (Wilson). Sharp-shinned Hawk. 

 Common in fall, winter and early spring in the lower country and on the 



Santa Barbara Islands. Breeds sparingly in the higher mountains. H. J. Le- 

 lande found a nest of this bird at Bear Valley, about 7000 feet altitude in the San 

 Bernardino Mountains, June 8, 1904. It contained four young birds about two- 

 thirds grown. 



156. (333) Accipiter cooperi (Bonaparte). Cooper Hawk. 



Fairly common resident from the lower foothills up to 7000 feet in the 

 mountains. Breeds mostly in late April and early May. H. C. Burt informs 

 me that this hawk breeds sparingly in the willow groves bordering the Santa 

 Clara River, \'entura County. He took a set of three eggs in this locality 

 April 17, 1906, and a set of four eggs, April 19, 1907. Antonin Jay took a 

 set of four, slightly incubated eggs near Covina, Los Angeles County, April 22, 

 1906, and J. Grinnell took a set of four, advanced in incubation, near Seven 

 Oaks, 5000 feet altitude in the San Bernardino Mountains, June 13, 1905 (Univ. 

 Calif. Publ. Zool. v, 1908, 58). A. B. Howell and A. van Rossem saw a pair of 

 these birds on Santa Cruz Island the latter part of April, 1911 (Condor xiii, 

 1911, 209). 



157. (337b) Buteo borealis calurus Cassin. Western Red-tail. 

 Common resident from the lowlands to at least 9000 feet in the mountains. 



Also on the larger Santa Barbara Islands. Breeds most plentifully in the foot- 

 hill and mesa country, eggs being generally deposited in March. J. B. Dixon 

 took two fresh eggs near Escondido, San Diego County, February 14, 1902 

 (Condor iv, 1902, 46), and H. A. Gaylord took two eggs advanced in incuba- 

 tion, in the San Fernando Valley, Los Angeles County, April 30, 1892 (Grin- 

 nell, Pub. 2, Pasadena Acad. Sci., 1898, 21). 



158. (339b) Buteo lineatus elegans Cassin. Red-bellied Hawk. 

 Fairly common resident of the lowlands, especially the willow regions. 



Breeds mostly in late March and the month of April. As the country settles 

 up this bird is becoming scarcer, and before many years will be found only in 



