78 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



overhead that there is but little shrub or small plant growth on 

 the very rocky and poor soil of this part of the country, while 

 on the west side the steep hill sides have more or less openings 

 with some brush, mostly scattering, on them. Along the stream 

 and in moist places the birch trees were just beginning to bud 

 out. The forest at the springs is composed mostly of yellow 

 pine, Douglas fir, and incense cedar, but sugar pine growth 

 commences a short distance higher up. Around the camp- 

 ground birds were extremely scarce, especially during the first 

 day or two of our stay. The first bird that attracted attention 

 was a Sierra Creeper, carrying material to a nest which was 

 a few yards away from the cabin door, and situated behind a 

 piece of loose bark on an incense cedar, about four feet from 

 the ground. 



The birds at this station were the general run of Sierran 

 species from like altitudes, and, being enumerated in the table 

 at the end of this paper, need not be listed here. Certain of 

 our observations, however, may prove of interest. 



One of the main objects of the field work in Siskiyou County 

 was the investigation of the local fox sparrow (Passerella) 

 situation, and one of the objects in making Stewart's Springs 

 an observation station was that of visiting the ranges above in 

 search of appropriate brush for this genus and to ascertain if 

 it were breeding there. With this idea in view Messrs. Holman 

 and Gilchrist were sent upon this errand on May 17. On that 

 day they did not reach any great elevation, but returned with 

 quite a list of birds noted, yet no fox sparrows, as they had 

 not met with the sort of brush this genus inhabits in the nesting 

 season. Mr. Gilchrist continued the search alone next day. 

 He started early and reached a point close to the rapidly retreat- 

 ing snow line, securing one fox sparrow and hearing two or 

 three more in a clump of dwarfed yew trees. The specimen 

 taken is one of the small-billed, brown-backed races which I 

 have identified as the Sooty Fox Sparrow. While this capture 

 raised our hopes of finding something worth while in this line, 

 surprising as it was to find one of the more northern forms here 

 at so late a date (May 18), such hopes were misplaced. Fur- 

 ther examination of that locality and of others near it resulted 

 in absolute failure to discover fox sparrows of any form what- 



