672 



GEOLOGICAL SURVEY OF THE TERRITORIES. 



The Eocky Mountain Jolne-bird seems to ijrefer a country wbicli has 

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

 not a common species in the district through which we i)assed. 



Family 4. — Sylvid^e, the Warblers. 

 Regulus calenclula, Licht., (ruby-crowned kinglet:) 



ffab. — North America from Atlantic to Pacific. 



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

 October, although 1 saw but two of them during the summer. It is 

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

 obtained a young one — No. 231, (02333) — there on the 20th of August. 



Family 5. — Parid^e. 



(Sub-family Pariiue, the Titmice.) 



Parus 7nontanus, Gambel., (mountain titmouse:) 



Jjah, — Pacific coast of United States to Eocky Mountains. 



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

 probably because it was the first place 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 

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

 like our "chickadee," (P. atricapiUus,) 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. atrieapiUus by the white 

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



(Sub-family Sittince, the Nuthatches.) 

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



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



