GEOLOGICAL SUEVEY OF THE TEEEITOEIES. 



689 



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

 which are white in the former and bhie in the latter, and in the entire 

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

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

 species by the great difference in climate and longitude. 



Perisoreus canadensis, Bonap., 



(gray jay: 



) 



No. 



Catalogue- 

 number. 



Sex. 



Date. 



Measure- 

 ments. 



Locality. 



194 

 196 

 19S 

 234 

 263 



62244 

 62245 

 62246 

 62247 



62248 



$ 



$ 

 $ 

 9 

 $ 



5 

 $ 



July 29, 1872 

 July 29, 1872 

 July 30, 1872 

 Aug. 22,1872 

 Sept. 13, 1872 

 Sept. 13, 1872 

 Sept. 16, 1872 

 Sept. 18, 1872 

 Sept. 27, 1872 

 Sept. 27, 1872 



llf X 17f 



lU X 171 

 12t X 18 

 12 X 17 

 12i X 18 

 lU X 174- 

 lli X 18i 

 Hi X 16i 

 llf X 17| 

 12 X 18i 



Teton Canou, Idaho. 



Do. 



Do. 

 Yellowstone Elver, Wyo. 

 Lewis's Lake, Wyo. 



Do. 



275 



273 

 287 

 2-39 



62250 

 65251 

 62252 

 62253 



Snake Eiver, Wyo. 



Do. 

 Second Teton Lake, Wyo. 



Do. 



So&. — IN'orthern America into the northern parts 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 

 tne, 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 x^ieces of elk meat and scattered them about on the ground 

 within a few feet of me ; then one of 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, OEYING-BIEDS.) 

 Family 23. — Tyeannid^, the Tyrant Fly-catchers. 

 Tyrannus caroUnensis, Baird, (king- bird:) 



No. 



Catalogne- 

 number. 



Sex. 



Date. 



Measure- 

 ments. 



Locality. 



149 

 150 

 1.57 

 106 



61771 

 61770 



62287 

 62289 



5 



July 5,1872 

 July 5,1872 

 July 14, 1872 

 July 16, 1872 



8i X 14A 

 8^ X 15-fV 

 8i X 14f 



8f X m 



Fort Hal], Idaho. 



Do. 

 Suake River, Idaho. 

 North Fork, Idaho. 



Hal). — 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. 60, (16314;) 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 

 here) that contained young birds that were nearly fall-grown. 



44 G s 



