OF THE UPPER MISSOURI. 171 
Corvus AmeErIcANus, Aud. 
Common Crow. Baird, General Report on Birds, p. 566. 
Very abundant throughout the Northwest. It is confined mostly to the marshy places 
of the interior, or along the watercourses. Quite widely diffused throughout the North 
American continent. 
Picicorvus CoLuMBIANUS, Bonap. 
Crark’s Crow. Baird, General Report on Birds, p. 573. 
I have never seen this bird immediately along the Missouri, though it was obtained by Dr. 
Suckley high up near Milk river. In passing up the valley of the Platte in the summer of 
1857, we began to meet with it near Fort Laramie, and found it very abundant in the 
Laramie range of mountains. From thence to the Black hills and also in the Bad Lands 
we met with it frequently. It is evidently confined, for the most part, to the rugged and 
almost inaccessible portions of the West. 
Pica Hupsonica, Bonap. 
Magpie. Baird, General Report on Birds, p. 576. 
One of the most common and familiar birds which the traveller meets with in the far 
West. I have never observed them below Council bluffs, and from thence to the moun- 
tains they increase in numbers. The buffalo country is their favorite region, where they 
live upon the meat of the buffalo and other game, that may chance to die by the agency 
of hunters or other causes. I think their favorite breeding-places are in the “ Bad Lands” 
and the small outliers of the Rocky mountains. I think it is confined to the regions west 
of the Mississippi. 
CYANURA MACROLOPHUS, Baird. 
LoNG-cRESTED Jay. Baird, General Report on Birds, p. 582. 
This fine species of Jay is quite common in the Laramie range of mountains, but quite 
difficult to obtain. I observed it in only one locality, and with considerable labor collected 
two specimens. It is always moving, and must be shot on the wing. Confined to the 
mountain regions of the West. 
PERISOREUS CANADENSIS, Bonap. 
Canapa Jay. Baird, General Report on Birds, p. 590. 
We observed this bird only in the mountain regions, but in those localities, very abun- 
dant and accessible. In the Laramie range and Black hills are myriads of them. It is 
quite extensively distributed over the north portion of North America. 
EcroPIsTES MIGRATORIA, Sw. 
Witp Piceon. Baird, General Report on Birds, p. 600. 
Although occasionally seen throughout the Northwest, I do not think this bird can be 
