218 CALIFORNIA ACADEMY OF SCIENCES. 



Arrives here about May 1. Nest and four eggs taken 

 June 15. 



Hoffman. General throughout the northern half of 

 the State where the country is favorable. 



Ridgway. Found in all the fertile canons from the 

 Sierra Nevada to the Uintahs. 



Mojave River. Cooper, 1870. I noticed the first of 

 this species April 24. 



244. Geothlypis trichas occidentalis Brewst. WESTERN 

 YELLOW-THROAT. 



San Diego. L. B. Rare in winter in the few suita- 

 ble localities. 



San Bernardino. F. Stephens. Rare resident of the 

 valley; common in summer. Agua Caliente, March 

 25-28, common; perhaps resident. Seen almost every 

 day from March 18 to April 15, 1886. 



Henshaw, 1876. Apparently not very common, 

 though distributed pretty evenly over the southern por- 

 tion of the State. 



Sebastopol. F. H. Holmes. March 24; common 

 April 12, 1885. 



Alameda and Contra Costa counties. W. E. Bryant. 

 Tolerably common; breeds. 



Central California. L. B. Very common in tule 

 marshes; a few winter as far north as Marysville, in the 

 Sacramento Valley. 



Beaverton, Oregon. A. W. Anthony. First, March 

 21, 1885; next seen April 1; common April 5. 



Willamette Valley. 0. B. Johnson. Very common 

 resident during summer. 



Walla Walla, W. T. Dr. Williams. April 21, 1885, 

 two; April 30, common. 



Cooper, 1860. Very common in the Territory during 

 summer. I observed its arrival about the first of April. 



