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1921 Reid, Russell. Winter Birds of Bismarck. N. D. Native Life, Vol. I. Nos. i 

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1901-1914 RiDGWAY, Robert! The Birds of North and Middle America. Washington, 



1899 RoLFE, Eugene S. Nesting of Nelson's Sparrow in North Dakota. Auk, Vol. 



XVI, pp. 356-357. 



1900 Roosevelt, Theodore. Hunting Trips of a Ranchman. G. P. Putnam's Sons. 



New York, 1900. 



192 1 Saunders, ArETas A. A Distributional List of the Birds o^ Montana. Cooper 

 Orn. Club. Pacific Coast Avifauna, No. 14. Berkeley, California, 1921. 



1904 Schmidt, C. C. List of Birds that have been observed in the State of North 

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1920 Schmidt, C. C. Nature Study and Agriculture, pp. 278-333. Birds of the 

 Northern States. D. C. Heath and Company. Boston, New York, Chicago, 

 1920. 



1887 S. C. C. Dakota Game. Forest and Stream, Vol. XXVIII, No. 19, p. 415. 



191J Simpson, Howard E. The Physiography of the Devils-Stump Lake Region, 

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 marck, 191 2. 



1917 Simpson, Howard E. Geography of North Dakota. Supplement to the North 



Dakota edition of the Essentials of Geography, by Brigham and McFarlane. 

 American Book Company, 1917. 



1918 Stevens, O. A. Eighteenth Christmas Census (Fargo, N. D., p. 47). . Bird 



Lore, Vol. XX (1918), No. i, pp. 25-50. 



1890 Thompson, Ernest S. (Seton, Ernest Thompson). Birds of Manitoba. Proc. 

 Nat. Mus., Vol. XIII, No. 841. Washington. 



1904 Thwaites, Reuben Gold. Early Western Travels, 1748-1846. Vol. VI. Jour- 

 ney up the Missouri, 181 1, by H. M. Brackenridge. Cleveland, 1904. 



1905, 1906 Thwaites, RBuben Gold. Early Western Travels, 1748-1846. Vols. XXII 

 and XXIII. Travels in the Interior of North America, by Maximilian, 

 Prince of Wied. Vol. I (1905), Vol. II (1906). Cleveland. 



1861 Trowbridge Collection of Natural History, Catalogue of the. In the Museum 

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1906 La VErEndrye. Expedition to the Mandans on the Missouri River. October, 



1738-February, 1739. Proc. and Transactions of the Royal Soc. of Canada, 



Second Series. Vol. XI. Memoirs, Sec. I, pp. 9-57- 

 1909 ViSHER, Stephen Sargent. A List of the Birds of Western South Dakota. 



Auk, Vol. XXVI, pp. 144-153. 

 1913 ViSHER, Stephen Sargent. An Annotated List of the Birds of Sanborn 



County, Southeast-Central South Dakota. Auk, Vol. XXX (1913), PP 



561-573- 

 1890 Warren, Benjamin Harry. Birds of Pennsylvania. Harrisburg, 1890. 



