S. F. Baird, John Cassin and Geo. N. Lawrence. Explorations and Surveys, etc. Vol. 9, War Dept. (often quoted as Vol. 9, Pacific R. R. Repts.).
Dr. A. L. Heermann. Explorations, etc. Vol. 10, No. 2, War Dept, (Vol. 10, Pacific R. R. Reports.).
Drs. G. Suckley and J. G. Cooper. Explorations, etc. Vol. 12, Book 2, part 3, War Dept. (reissued as Natural History of Washington Territory), the extracts from their respective notes being prefaced in this report with Cooper, 1860; Suckley, 1860, this being the date of the publication of their work.
Dr. J. G. Cooper. Geological Survey of California, J. D. Whitney, State Geologist. Vol. 1, Land Birds, edited by S. F. Baird from manuscript and notes of Dr. J. G. Cooper. Herein cited as Cooper, 1870. [Auk, vii, 214. W. E. B.]
H. W. Henshaw. Wheeler's Topographical Surveys, Appendix JJ., dated 1876, cited as Henshaw, 1876. (Observations at Santa Barbara, Fort Tejon, Mount Whitney, Walker's Basin and intervening country in 1875.)
H. W. Henshaw. Wheeler's Surveys, 1879, Appendix 00., in this report quoted as Henshaw, 1879. (Mr. Henshaw's observations were on the east slope from Carson, to the Columbia River, and included work in the summers of 1877 and 1878.)
O. B. Johnson. Birds of Willamette Valley. American Naturalist, 1880. Prof. Johnson also contributed his observations at Seattle in 1884.
Capt. Charles E. Bendire, U. S. A. Notes on some of the birds found in southeastern Oregon, particularly in the vicinity of Camp Harney. Proc. Boston Society of Nat. Hist., 1877. (Observations from November, 1874, to January, 1877.)
Robert Ridgway. United States Geological Survey
