BIRDS OF THE PACIFIC DISTRICT. 99 



Walla Walla. J. W. Williams. Summer resident. 



Heiishaw, 1879. Common summer resident of the 

 mountains. 



Camp Harney. Ben dire. Moderately common sum- 

 mer visitor. 



Hoffman. Common throughout the northern and 

 more timbered regions of Nevada but rather rare in the 

 southern interior. 



Ridgway. Met with in every wooded locality and 

 was no less common at an altitude of 8,000 feet in the 

 Wahsatch Mountains than at Sacramento, but little above 

 sea level. 



L. B. It almost always places its nest on a dead hori- 

 zontal limb, at least this is according to my observations 

 and I have seen many nests which were saddled on 

 limbs, in a solitary instance, however, the nest was in 

 or on horizontal diverging twigs in a deciduous oak 

 where it was partly hidden by foliage; again, one was 

 nicely surrounded and to a great extent concealed 

 by having been built in a bunch of yellow lichen (Ever- 

 nia.) Stockton, September 15, 1883, is my latest record. 



107. Empidonax difficilis Baird. WESTERN FLY- 

 CATCHER. 



San Diego, April 12, 1884, first; several males; April 

 20 first female. In 1885 the first arrival was March 20. 

 I think a few remain in San Diego County ordinary 

 winters; I have seen one there in December. L. B. 



Poway. F. E. Blaisdell. April 15, 1884, first. A 

 summer resident. In 1885, first arrival March 17. 



San Bernardino. F. Stephens. Tolerably common 

 summer resident of the valleys and mountains. 



Agua Caliente. F. Stephens. Seen from April 2 to 

 15, 1886; common the latter part of the time. 



Henshaw, 1876. Not uncommon summer resident in 



