382 University of California Publications in Zoology [Vol. 12 



the continual tapping from within. It is to be inferred that the 

 egg was laid before the nest-eavity had reached its proper dimen- 

 sions, and that the bird viewed the egg in the light of an obstruc- 

 tion, to be gotten rid of at that stage of nest-building. The species 

 was also observed at Kangaroo Creek, August 4. 



Selasphorus rufus (Gmelin). Eufous Hummingbird. Five 

 specimens (nos. 19171, 19172), from South Fork of Salmon River, 

 July 14, and nos. 19168, 19173, 19174, July 27, 29 and 30, from 

 head of Rush Creek. 



Stellula calliope (Gould). Calliope Hummingbird. Three skins, 

 no. 19175, from Wildcat Peak June 30; no. 19170 from South Fork 

 of Salmon River, July 14, and no. 19169, from Castle Lake, August 20. 



Say amis nigricans (Swainson). Black Phoebe. One skin, no. 

 17315, from Tower House, March 2. 



Nuttallornis borealis (Swainson). Olive-sided Flycatcher. Two 

 skins (nos. 19176, 19177), from head of Grizzly Creek, July 23. 



Myiochanes richardsoni richardsoni (Swainson). Western 

 Wood Pewee. Five specimens (nos. 19178-19182), June 9 to July 13, 

 from Scott River, Jackson Lake, and South Fork of Salmon River. 



Empidonax trailli trailli (Audubon). Traill Flycatcher. One 

 skin, no. 19187, from Scott River, June 12. 



Empidonax hammondi (Xantus). Hammond Flycatcher. Adult 

 male, no. 19183, from South Fork of Salmon River, July 15; juve- 

 nile male, no. 19184, head of Grizzly Creek, July 23; juvenile male, 

 no. 19186, Castle Lake, August 20. 



Empidonax wrighti Baird. Wright Flycatcher. One juvenal, no. 

 19185, from head of Bear Creek, August 14. 



Cyanocitta stelleri frontalis (Ridgway). Blue-fronted Jay. 

 Nineteen skins, nos. 17316, 17317, 19188-19204, from Helena, Jack- 

 son Lake, North Fork of Coffee Creek, head of Grizzly Creek, head 

 of Rush Creek, head of Bear Creek, and Castle Lake. Some of 

 these show indications of intergradation towards the coast form 

 carbonacea. 



Aphelocoma calif ornica calif ornica (Vigors). California Jay. 

 One skin, no. 17318, from Helena, February 24, where only two or 

 three were noted. Observed also at Scott River, in June. 



Nucifraga Columbiana (Wilson). Clarke Nutcracker. One 

 specimen, no. 19205, from head of Bear Creek, August 12. Seen 

 at Jackson Lake, June 23 and 24, and on Wildcat Peak, June 28. 



