1920] 



Swarth: Revision of Avian Genus Passerella 



157 



migration was evidently in full swing, and specimens of schistacea 

 were shot from time to time along with several other subspecies of 

 Passerella. The latest taken specimen in the spring is one from Ojai 



iaca schistacea, breeding 



DISTRIBUTION MAP 



MUSEUM OF VERTEBRATE ZOOLOGY 

 UNIVERSITY OP CALIFORNIA 



Fig. X. Map showing stations of occurrence of Passerella iliaca schistacea 

 and P. i. canescens in Nevada and California, as established by specimens exam- 

 ined by the author. The portion of southern California enclosed within the outline 

 is believed to be the main winter habitat of schistacea in this state. Note the 

 general avoidance of the coastal region. 



Valley, Ventura County, April 25. In the vicinity of Lone Pine, 

 Inyo County, in 1912, slate-colored sparrows were seen daily about 

 the middle of April, migrating northward, specimens being secured 

 from April 10 to 16. 



