250 University of California Publications in Zoology [Vol. 10 



Calypte anna (Lesson) 

 Anna Hummingbird 



Nowhere abundant, though observed and found breeding in 

 various parts of the mountains. Apparently most numerous on 

 the northern slopes of the range, where they were seen at Cab- 

 ezon (one bird. May 16), in some numbers at Schain's Ranch, 

 June 16-30, and occasionally at Fuller's Mill, June 31 to July 6. 

 About the summit of Santa Rosa Peak, the last week in June, 

 several were noted. These were probably wanderers from below, 

 but others were seen about half way up the mountain, at the 

 Garnet Queen Mine (altitude 6000 feet), and at this point the 

 species was breeding. A nest was found here, built on the 

 branching limb of a golden oak, overhanging the trail, of the 

 usual structure and covered with lichens. This nest contained 

 two young on June 26. 



In Strawberry Valley, in July, some were encountered from 

 time to time, but they were not abundant. A single bird was 

 taken in Round Valley. July 0. At Ilemet Lake, August 5 to 15, 

 and on Thomas Mountain. August 16-21. they were seen daily. 

 At Dos Palmos. August 23-27. a few were noted along the creek 

 bottom, though the species had not been seen here on our pre- 

 vious visits early in the summer. 



Seven specimens were collected: Schain's Ranch, one (no. 

 1855), Fuller's Mill, one (no. 2017), Round Valley, one (no. 

 2171), Santa Rosa Peak, one (no. 2438), Strawberry Valley, 

 three (nos. 2722-2724). 



Selasphorus rufus (Gmelin) 

 Rufous Hummingbird 

 After the first week in July many hummingbirds of this anil 

 the closely related species, S. alleni, were seen in the higher parts 

 of the mountains, and during the remainder of our stay here, 

 nearly two months, they continued to be numerous. The two 

 species are so nearly alike that it is ordinarily impossible to dis- 

 tinguish them in life, and we were unable to ascertain their 

 relative abundance; but of the specimens obtained the majority 

 are 8. rufus. There can be no doubt that neither breeds in the 



