672 



GEOLOGICAL SURVEY OF THE TERRITORIES. 



The Eocky Mountain blue-bird seems to prefer a country wbicb has 

 been burnt over, and is covered with stumps and fallen timber. It is 

 not a common species in the district through which we passed. 



Family 4, — Sylvidv^, the Warblers. 



Begulus calendula, Licht., (ruby- 



crowned kinglet:) 



No. 



Catalogue- 

 number. 



Sex and 

 age. 



Date. 



Measure- 

 ments. 



Locality. 



231 

 267 



62333 

 62334 







Aug. 20, 1872 

 Sept. 14, 1872 



4iX7i 

 4fX7^ 



Lower Geyser Basin, Wyo. 

 Snake River, Wyo. 



3ah. — North America from Atlantic to Pacific. 



This pretty little bird is probably abundant in early spring and in 

 October, although I saw but two of them during the summer. It is 

 evident that they breed in the Yellowstone country, froni the fact that I 

 obtained a young one — ISTo. 231, (02333) — there on the 20th of August. 



Family 5. — Paeid^. 



(Sub-family Parince, the Titmice.) 



Parus montaiiua, Gambel., (mountain titmouse:) 



No. 



Catalogue- 

 number. 



Sex. 



Date. 



Measure- 

 ments. 



Local ity. 



211 

 212 

 256 

 279 



62349 

 62350 

 62351 

 62352 



s 

 $ 

 $ 

 $ 



July 31, 1872 

 July 31, 1872 

 Sept. 7,1872 

 Sept.l8, 1872 



5i X8f 

 5i%X8f 

 51 XSi 

 51 X9 



Teton Canon, Idaho. 



Do. 

 Shoshone Lake, Wyo. 

 Snake River, Wyo. 



Kah. — Pacific coast of United States to Eocky Mountains. 



Teton Canon was the first place where we observed this species, 

 probably because it was the first i3lace on our route where we found 

 coniferous trees. 



The mountain chickadee is an abundant species in the Fire-Hole Ba- 

 sin, and also from the source of Snake Eiver to where it leaves the 

 wooded mountain sides and flows through an open plain. This bird, 

 like our " chickadee," (P. atricapilhiSj) is very tame, and evidently likes 

 the company of man, as they flit about from limb to limb in search of 

 their food within a few feet of you, without even looking up, or showing 

 any signs of fear or even surprise at your presence. This species may 

 easily be distinguished from our eastern P. atricapillus by the white 

 front and the white line over the eye, cutting ofl" a black one through it. 



(Sub-family Sittince, tJie Nuthatclies.) 

 Sitta aculeata, Cassin, (slender-billed nuthatch.) 



No. 



Catalogue- 

 number. 



Sex. 



Date. 



Measure- 

 ments. 



Locality. 



240 



62297 



S 



Aug. 27, 1872 



6X11 



Lower Geyser Basin, Wyo. 



Sal). — Pacific coast of United States to Eocky Mountains. 



