146 CALIFORNIA ACADEMY OF SCIENCES. 



ter year having followed the coast nearly fifty miles 

 north of San Diego without finding it. I last saw 

 it at San Diego, March 10, 1884. Its nesting places 

 and nesting habits are still unknown, although Dr. 

 Cooper found them feeding their young at San Pedro in 

 July but never found a nest that he was certain be- 

 longed to this species (Gal. Orn., 1870). 



I have noticed the species with more than ordinary 

 interest at Guaymas, La Paz, San Jose del Cabo, Todos 

 Santos Village, San Diego and San Pedro, and having 

 seen the type of guttatuts, think rostrutus a species of but 

 little individual variation, even including guttatus and 

 Dr. Streets' San Benito Island specimens. It is a spe- 

 cies that can hardly be traced to its origin. 



164. Ammodramus bairdii (Aud.) Baird's Sparrow. 

 Camp Harney. Bendire. — May 24, 1876, I took a nest 



and eggs with the parent, which I identified as this 

 species. 



165. Ammodramus savannarum perpallidus Ridgw. 

 Western Grasshopper Sparrow. 



San Diego, April 19, a male, first; probably a few 

 breed in El Cajon. — L. B. 



Santa Barbara. Henshaw, 1876. — Directly on the 

 coast, breeding. 



Ridgway. From June 6 to July 4, 1867. Abundant 

 in the fields about Sacramento City, as well as through- 

 out the interior. 



Oakland. W. E. Bryant. — Five male specimens in 

 spring. 



Hoffman. Found to breed near Eureka, Nevada. 



