GEOLOGICAL SURVEY OF THE TERRITORIES. 



693 



This Eocky Moimtaiu race of our common uight-hawk (P. popetue) 

 was quite common in the Salt Lake Basin, thence north to Yellowstone 

 Lake, where they were very numerous. 



Family 34. — TROCHiLiDiE, the Humming-birds. 

 Trochihts alexandri, Bourc. and Muls., (black-chinned humming-bird:) 



Sal). — California, Utah, Arizona, and southward. 



Black-chinned humming-birds were not uncommon near Ogden, where 

 I obtained three specimens; they were breeding there, but I was unable 

 to discover any of their nests. 



Stellula calliope, Gould, (calliope humming-bird :) 



ITal). — Mountains of Montana, Washington, Oregon, and California, 

 to Mexico. * 



This species was only observed at Fort Ellis, Montana Territory. 



Order 3.— ZYGODACTYLI, CLIMBING BIRDS. 

 Family 38. — PiciD^, THE Woodpeckers. 

 Picus harrisil, And., (Harris's woodpecker :) 



Hah. — From the Pacific coast to the eastern slope of the Eocky 

 Mountains. 



This western race of P. villosiis was quite abundant in theT6ton Caiiou, 

 thence northward, following the pine forests, to Yellowstone Lake, and 

 the head-waters of Snake liiver. 



