GEOLOGICAL SURVEY OF THE TERRITORIES. 



689 



resemble, the chief points of difference being" in the undertail coverts, 

 wbich are white, in the former and bUie in the latter, and in the entire 

 under parts, which are much darker in floridana than in caUfornica. 

 These slight differences are no greater than those caused in many other 

 species by the great difference in climate and longitude. 



Perisoreiis canadensis, Bouap., (gray jay :) 



Hah. — Northern America into the northern ];)arts of United States, 

 from Atlantic to Pacific; more south in Eocky Mountains. 



We first met gray jays at the Teton Caiion, where they were quite 

 numerous, as they were northward to the Grand Caiion of the Yellow- 

 stone, and down Snake Eiver on the east side of the Teton Eange. They 

 were generally very tame, often alighting on a limb within ten feet of 

 me, then, after eyeing me for a few moments, would disappear in the 

 forest. I remember one occasion, near Yellowstone Lake, when these 

 birds came about our camp, evidently in search of eatables, I cut off a 

 few small pieces of elk meat and scattered them about on the ground 

 within a few feet of me; then oneof the jays, which had been watching 

 me closely from a neighboring limb, darting down, seized a piece of the 

 meat and flew with it into a tree near by, and, after devouring it, 

 returned for more. I have often heard hunters and others state that 

 they had known these jays to be so bold as to light on their shoulders! 



(Section CLAMATOEES, CEYING-BIEDS.) 

 Family 23. — Tyrannic^, the Ty^rant Fly-catchers. 

 Tyrannus caroUnensis, Baird, (king-bird:) 



^a&.— Entire continent of North America. 



We found king-birds quite common at Ogden, thence northward to 

 Snake Eiver, where I found one of their nests, No. GO, (1G314;) it was 

 on a rose-bush, about four feet from the ground, and contained three 

 fresh eggs. These birds must have raised one brood before this, as, two 

 days before, I found a nest at Blackfoot Eiver (twenty-five miles from 

 liere) that contained young birds that were nearly full-grown. 



44 G- s 



