186 
BIRDS OF COLORADO. 
BIBLIOGRAPHY OF COLORADO ORNITHOLOGY. 
Page 21. Add. Aiken, C. E. Otocoris alpestris arenicola. 
Colorado Springs Gazette (local newspaper), Feb. 8, 1899. 
Habits of this bird during cold weather. 
Page 22. Add. Anthony, A. W. A new subspecies of the 
Genus Dryobates. Auk, XIII. 1896, p.32. 
Describes the subspecies Dryobates villosus montanus. Rocky Moun¬ 
tain Woodpecker with the type from Boulder, Colorado. In Auk , XV. 1898, 
p. 54, Anthony changes montanus to monticola , and as such this subspecies 
has been recognized by the A. O. U. 
Page 22. Add. Baird, S. F. Smithsonian Miscellaneous Col¬ 
lections, 181, Review of American Birds in the Museum of 
the Smithsonian Institution. Pait I. North and Middle 
America. Washington Smithsonian Institution, 1864-66, 
pp. IV., 450. 
Contains incidental records of a few species of birds taken in Colorado. 
Bangs, Outram. A Review of the Three-toed Woodpeckers of 
North America. Auk, XVII. 1900, p. 126. 
Description of Picoides americanus dorsalis, with notes on nine speci¬ 
mens taken in Colorado. 
Page 26. Add. Brewster, Wm. Lewis’s Woodpecker Storing 
Acorns. Auk, XV. 1898, p. 188. 
Habits of the birds as noted near Denver, Colorado, and reported to him 
by Manly Hardy. 
Page 26. Add. Christie, N. R. The Pinon Jay. Osprey, III. 
1898, p. 51. 
Short account of its breeding habits near Rouse Junction, Colorado. 
Page 27. Add. Cooke, W. W. The State Agricultural Col¬ 
lege, The Agricultural Experiment Station, Bulletin No. 44, 
Technical Series No. 4, Further Notes on the Birds of Colo¬ 
rado, An Appendix to Bulletin No. 37, on the Birds of Colo¬ 
rado. By W. W. Cooke. Approved by the Station Council. 
Alston Ellis, President. Fort Collins, Colorado, March, 
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