676 



GEOLOGICAL SURVEY OF THE TERRITORIES, 



We met with tliis beautiful warbler but twice during the summer. 

 On the first occasion we were just entering the Lower Geyser Basin, 

 when I observed a pair of these little birds in a grove of small pine 

 trees ; they were hopping about on the ground, and upon my approach 

 flew up into a tree, out of which I shot the male — No. 227, (02347.) 



The second and last time that I saw* this species was at the Second 

 Teton Lake, where I saw a male high up in a pine tree. I secured him 

 also. 



Family 10. — HmuNDiNiDyiE, the Swallows. 

 Hirundo horreorum, Barton, (barn-swallow:) 



Kab. — North America, from Atlantic to Pacific. 



Barn-swallows are common at most places between Fort Hall, Idaho, 

 and Ogdeu, Utah. They are also numerous at Fire-Hole Basin, Wyo- 

 ming Territory, where I obtained two specimens — No. 244, (02295,) and 

 No. 247, (02296.) 



Fetrochelidon liinifrons, Say, (cliff- swallow:) 



Scib. — North America, from Atlantic to Pacific. 



This is another common species of swallow. We found them very 

 l^leutiful in the vicinity of Great Salt Lake; thence north to Fort Hall, 

 where they were also abundant. I obtained the nest of this species — 

 No. 58, (16312,)— 9, No. 147, shot at Ross Fork, Idaho Territory, on the 

 3d of July. It was composed of mud, and was fastened to the bank of 

 the creek, and about eight feet above the water. The nest contained 

 two fresh eggs. 



Tacliycincta thalassina, Sw., (violet-green swallow :) 



Hah. — Rocky Mountains to Pacific; south to Mexico ; east to Saltillo, 

 Mexico. 



