OF THE UPPER MISSOURI. 
155 
COGCYGUS ERYTHROPHTIIALMUS, Bp. 
Black-billed Cuckoo. Baird, General Keport on Birds, p. 77. 
Six specimens of this and the preceding bird are included in our Nebraska collection. 
The habits of both species are much alike, and their geographical distribution much the 
same. 
Pious villosus, Linn. 
Hairy Woodpecker. Baird, General Keport on Birds, p. 84. 
Not uncommon on the dry trees of the river bottoms of the Northwest. Six specimens 
were secured. It ranges throughout the Northern and Western regions. 
Picus pubescens, Linn. 
Downy Woodpecker. Baird, General Report on Birds, p. 89. 
Seems to have habits and geographical distribution similar to the preceding, though, 
perhaps, less abundant. 
Picoides dorsalis, Baird. 
Striped Three-toed Woodpecker. Baird, General Report on Birds, p. 100. 
The only specimen we observed of this species was taken near Laramie peak, and is one 
of the novelties secured in our explorations. In regard to its habits, I know nothing. 
The locality from which this species was obtained would well reward a more extended 
examination, for I have never known a region which seemed to promise so many novelties 
to the ornithologist. We were able to spend but two days in this vicinity, yet in that 
period we secured, in addition to fine collections in other departments, thirty-five specimens 
of birds, most of them rare; one species, entirely new to science, and a second, of which 
but one specimen had been obtained previously. 
Sphyropicus varius, Baird. 
Yellow-bellied Woodpecker. Baird, General Report on Birds, p. 103. 
Very abundant along the wooded bottoms of the Missouri. It ranges from the Atlantic 
Ocean to the eastern slopes of the Rocky mountains, and occurs in Greenland. 
Sphyropicus thyroideus, Baird. 
Brown-headed Woodpecker. Baird, General Report on Birds, p. 106. 
This rare bird forms another of the results of our visit to Laramie peak. But three 
specimens are contained in the collections of the Smithsonian Institution. It seems to be 
confined to the region of the Rocky mountains. 
Hylotomus pileatus, Baird. 
Black Woodpecker. Baird, General Report on Birds, p. 107. 
Though no specimens of the above species is contained in our Nebraska collections, we 
