220 CALIFORNIA ACADEMY OF SCIENCES. 



Henshaw, 1879. Extreme northern California, quite 

 rare. 



Camp Harney. Bendire. Rare summer resident; 

 arrives about May 15. 



Hoffman. It breeds in the upper portions of Nevada. 



Ridgway. Equally common in California and the in- 

 terior. It arrived at Truckee Meadows May 10, 1868. 

 Specimen at West Humboldt Mountains September 7. 



Cooper, 1870. Many arrived at Fort Mojave about 

 April 20, 1861, where on May 19 I found a nest and 

 three eggs, besides one of the cowbird ( Molothrus) . 



246. Sylvania pusilla ( Wils. ) WILSON'S WARBLER. 

 Ridgway . Specimens taken in West Humboldt Mount- 

 ains September 20, 1867; East Humboldt Mountains, 

 August 29, and September 1, 1868. 



247. Sylvania pusilla pileolata (Pall.) PILEOLATED 

 WARBLER. 



San Diego. L. B. April 14, 1884, first males; these 

 were common April 19. 



Poway. F. E. Blaisdell. Summer resident. First 

 seen March 6, 1884; very plentiful on the oaks when in 

 blossom. First seen March 20, 1885. 



Julian. N. S. Goss Breeding; seen at Los Angeles, 

 March 6, 1884. 



San Bernardino Valley. F. Stephens. Rare summer 

 resident. Agua Caliente. Several seen, perhaps 

 migrants. March 19, 1886, one; seen almost every day 

 from April 1 to 15. 



Henshaw, 1876. Los Angeles. Middle of June, not 

 uncommon in the swampy thickets. About the middle 

 of August [at Fort Tejon ?], they became common, mov- 

 ing southward. The bulk of these are the true M. 

 pusillus. 



