BIRDS OF THE PACIFIC DISTRICT. 253 



next seen April 25; common April 27; breeds here; 

 began to sing May 2, 1885. In 1886 the first seen was 

 on April 25; common April 30; began to sing April 28. 



Chico. Wm. Proud. First seen May 1; common 

 May 6, 1885. 



Sebastopol. F. H. Holmes. First seen April 27, 

 1885; next seen April 29, common April 30; breeds 

 abundantly. 



Walla Walla, W. T. J. W. Williams. May 20 four 

 birds, first seen; next seen June 2; June 10 common; 

 tolerably common in breeding season; young seen 

 June 30. 



British Columbia. John Fannin. Common summer 

 resident. 



Ridgway. Truckee Valley (not far from the eastern 

 base of the Sierra). One specimen seen June 2, 1868; 

 not again met with in Nevada. Dr. Cooper (Proceed- 

 ings Nat. Mus. 1879), says it was first seen at San Diego 

 April 25, 1862 a backward spring like that of 1884; 

 Haywards, April 20, 1875; April 23, 1876. 



287. Turdus ustulatus swainsonii (Cab.) OLIVE-BACKED- 

 THRUSH. 



British Columbia. John Fannin. An abundant 

 summer resident. 



East Humboldt Mountains. Ridgway. Encountered 

 in considerable numbers during the season of their 

 southward migration. 



Pine forests of Calaveras County. L. B. Summer, 

 breeding, common in several localities, probably com- 

 mon in numerous localities in the coniferous forests of 

 the Sierra, in summer, from Tuolumne County north- 

 ward. (See Proc. Cal. Acad. Ser. 2, ii, 60.) 



