256 University of California Publications in Zoology [Vol. 10 



Strawberry Valley, four (nos. 2593-2595, 2606), Tahquitz Valley, 

 two (nos. 2801, 2802), Thomas Mountain, four (nos. 3038-3041), 

 Garnel Queen Mine, two (nos. 2460, 2461), Dos Palmos, one (no. 

 2507), Palm Canon, two (nos. 3079, 3080); and three newly 

 hatched young taken at Garnet Queen Mine, and preserved in 

 alcohol (no. 15475). 



Empidonax trailli trailli (Audubon) 

 Traill Flycatcher 



Seen only on the desert side of the mountains until the 

 late summer movement began, when they appeared in numbers 

 at other points. Migrating birds were taken at Cabezon in May. 

 At Dos Palmos at the end of May. they were present in some 

 numbers, migrating as we supposed; but since many more were 

 seen at the same spot the third week in June, they were possibly 

 breeding. Here they frequented the thickets of desert willow 

 marking the course of Carrizo Creek. We found them in very 

 similar surroundings in Palm Canon, the middle of June, at the 

 mouth of the Canon and at various points up to about 3000 feet. 



During the first two weeks in August they were noticeably 

 abundant at Hemet Lake, the following week (August 16-20) 

 a Dumber were seen on Thomas Mountain (altitude 6800 feet), 

 and later, August 22-27. many were observed along Carrizo 

 Creek, below Dos Palmos. 



Nineteen specimens, all adults, were preserved: Cabezon, six 

 (nos. 1686-1691), Snow Creek, three (nos. 2140-2142), Banning, 

 one (no. 2052), Dos Palmos, five (nos. 2501-2505). Palm Canon, 

 one (no. 3078), Hemel Lake, two (nos. 2989-2990). and Thomas 

 Mountain, one (no. 3037). 



Empidonax wrighti Baird 

 Wright Flycatcher 

 The status of the species of small flycatcher breeding in the 

 Boreal zone of the mountain ranges of southern California is 

 a problem that can not yet be considered satisfactorily solved, 

 in spite of the large amount of material accumulated during the 

 last few years. It seems apparent, however, that the breeding 



