166 
ON THE GEOLOGY AND NATURAL HISTORY 
Coturniculus passerinus, Bonap. 
Yellow-winged Sparrow. Baird, General Report on Birds, p. 450. 
Abundant along tlie valley of the Platte river. We secured twelve specimens along 
the Loup fork, a branch of the Platte. 
Coturniculus Henslowi, Bonap. 
IIenslow’s Bunting. Baird, General Report on Birds, p. 451. 
One specimen of the above species was obtained in the Platte valley, in 1857. Doubt¬ 
less rare. 
Chondestes grammaca, Bonap. 
Lark Finch. Baird, General Report on Birds, p. 456. 
Occurs in great numbers throughout the prairie country of the Northwest. Nineteen 
specimens are included in our collection. 
ZONOTRICHIA LEUCOPHRYS, Sw. 
White-crowned Sparrow. Baird, General Report on Birds, p. 458. 
Belongs to a species of sparrows which are very abundant throughout the prairie coun¬ 
try of the Northwest. Ranges throughout northern North America. 
Zonotrichia Gambelii, Gambel. 
Gambel’s Finch. Baird, General Report on Birds, p. 460. 
Not quite as abundant as the preceding species, though associated with it. Peculiar to 
the Western prairie countries. 
Zonotrichia querula, Gamb. 
Harris’s Finch. Baird, General Report on Birds, p. 462. 
Same as preceding. Confined to the West, and so far as we yet know, to the country 
bordering on the Lower Missouri. 
Zonotrichia albicollis, Bonap. 
White-throated Sparrow. Baird, General Report on Birds, p. 463. 
Very abundant throughout the Northwest. Thirteen specimens were collected at differ¬ 
ent localities. 
Junco Oregonus, Sclat. 
Oregon Snow Bird. Baird, General Report on Birds, p. 467. 
Rather rare along the Missouri, but two specimens having been secured by our party. 
Its range, according to Prof. Baird, is from the Pacific coast of the United States to the 
eastern side of the Rocky mountains. Wanders as far east as Fort Leavenworth in winter, 
and Great Bend of Missouri. 
