600 THE FAUNA OF MONTANA TERRITORY. 
but near the Great Bend, and at other points above there, 
as far as the mouth of Milk river, I found large numbers 
inhabiting old hollow cotton-woods. They seemed smaller 
and with a whiter throat than C. pelasgia, but I did not 
succeed in shooting any. None occurred west: of this 
point. 
Nieut-Hawk (Chordeiles Henryi?). Night-hawks were 
. common all the way across the mountains, until September 
18th, when a heavy frost occurred at the Coeur d’Alefie Mis- 
sion and drove them south with the Cliff Swallows, which 
were flying about camp with them on the previous afternoon. 
Myriads of them flew about, high over the small prairies 
along Hell Gate river, in the calm warm afternoons, nest 
the end of August, just as the common eastern species dees 
later in the season, and with the same loud cry. 
The specimen preserved was shot at Sun river, east of 
the mountains, August 10th, and I found eggs on the bare , 
ground both at Judith river, June 29th, and near Prickly- 
pear Creek, August 18th, the latter broken, and with nearly 
hatched young; probably a second brood. 
Specimens of Night-hawks, from both sides of the conti- 
nent, being “undistinguishable” (Baird’s Birds, p. 152), the 
slight differences in plumage, of the intermediate Rocky 
Mountain form, seem scarcely enough to separate it, while 
its habits seem precisely similar. (See Baird’s Rep., P. acific 
R. R. Survey, Vol. IX, App., p. 922.) 
BELTED KINGFISHER (Ceryle Alcyon). Not seen along 
the muddy portion of the Missouri, but common from Fort 
Benton westward. 
Kıxcsrird (Tyrannus Carolinensis). Found at intervals 
throughout the valleys of the Rocky Mountains, and found 
also at Fort Vancouver, on the Lower Columbia, in 1853, 
though it has never been observed in California, and would 
seem, therefore, to pass to the west coast by this roundabout 
way.— To be continued. f 


