1893.] NATURAL SCIENCES OF PHILADELPHIA. 45 



155. Empidonax pusillus. Little Flycatcher. 



156. Empidonax pusillus traillii. Traill's Flycatcher. 



The relationships of these forms in British Columbia are confus- 

 ing, apparently reversing the relative distribution of eastern and 

 western as it obtains farther south. Six specimens from Ashcroft, 

 Vernon and Lac La Hache, a,re pusillus ; one from Lac La Hache 

 is evidently traillii. Three from Lulu Island, slightly yellower 

 below and browner above than interior skins, appear to be traillii. 

 Three of Mr. Streator's birds are from the eastern and three from 

 the western Cascade regions, yet all appear to be traillii with larger 

 bills, while all of mine from the same regions more nearly resemble 

 pusillus. I incline to the theory that traillii ranges boreally 

 through northern, eastern and western British Columbia, centrally 

 receiving a slight admixture of pusillus through the intrusion of 

 the upper Sonoran element into the country around Ashcroft. 



157. Empidonax hammondi. Hammond's Flycatcher. 



Of uniform distribution over mainland and islands. Breeding: 

 wherever found. 



158. Otocoris alpestris merrilli. Dusky-horned Lark. 



Breeding in the highland valleys near Ashcroft. 



159. Pica pica hudsonica. American Magpie. 



Well scattered over the interior but nowhere so common as in 

 Okanagan Valley near Vernon. 



160. Cyanocitta stelleri. Steller's Jay. 



Found only on the coast and west Cascade slopes. Both Fannin 

 and Streator assert they are found in the interior, a statement dis- 

 proved by all the specimens secured. 



161. Cyanocitta stelleri annectens. Black-headed Jay. 



While many of the interior specimens are intermediate, all are 

 more referable to annectens than stelleri. 



162. Perisoreus canadensis capitalis. Rocky Mountain Jay. 



I noted these Jays at Lac La Hache, Bonaparte, Vernon, Nelson 

 and Field. 



163. Perisoreus ohscurus. Oregon Jay. 



One specimen was taken at Nisqually. They are not numerous 

 on Vancouver Island and may be said to be rare in summer on the 

 coast. Mr. Fannin seems to have confounded this species with P. 

 canadensis capitalis as a resident of the interior. I have no mate- 



