66 THE RAPTORIAL BIRDS OF IOWA 



"Circus hudsonius. Jones, Lynds; in Bendire's Life History of the North 



American Birds, Vol. 1, p. 186. 1892. (Grinnell.) 

 *Circus hudsonius (Linn.). Preston, J. W., Ibid, p. 185. (Baxter.) 

 Circus hudsonius. Bendire, Captain Charles, Life Histories of North 



American Birds, p. 183, 1892. 

 *Circus hudsonius. Osborn, Herbert, A Partial Catalogue of the Animals 



of Iowa Represented in the Collections of the Departments of Zoology 



and Entomology of the Iowa Agricultural College, p. 7, 1892. 

 Circus hudsonius. Hatch, Dr. P. L., Birds of Minnesota, p. 178, 1892. 

 Circus hudsonius. Fisher, Dr. A. K., Hawks and Owls of the U. S., p. 26, 



1893. 

 *Circus hudsonius. Anderson, Rudolph M., A Collecting Trip in Northern 



Iowa: The Oologist, Vol. 11, No. 4, p. 142, 1894. (Lake Edwards, Han- 

 cock County.) 

 *Circus hudsonius. Jones, Lynds, Bird Migration at Grinnell, Iowa: The 



Auk, Vol. 12, p. 121, 1895. 



*Circus hudsonius. Jones, Lynds, Ibid, p. 236. 

 * Circus hudsonius. Shoemaker, Frank H., A Partial List of the Birds of 



Franklin County, Iowa, July, 1896, p. 7. 

 *Circus hudsonius. Anderson, R. M., A Hawk Diary: The Nidologist, Vol. 



3, Nos. 10 and 11, p. 124, 1896. (Forest City.) 

 *Circus hudsonius. Anderson, R. M., Birds of Winnebago and Hancock 



Counties, Iowa, p. 6, 1897. 

 *Circus hudsonius. Keyes, Charles Reuben, The lowan Raptores: The 



Iowa Ornithologist, Vol. 3, No. 1, p. 2, 1897. 

 *Circus hudsonius. Savage, W. G., Some Notes on the Birds and Weather 



in Van Buren County, Iowa, March, 1897: The Iowa Ornithologist, Vol. 



3, No. 2, p. 27, April, 1897. 

 "Circus hudsonius. Savage, David L., Birds of the Midland Region: The 



Midland Monthly, Vol. 8, p. 465, 1897. (Southern Iowa.) 

 *Circus hudsonius. Wilson, B. H., One Small Piece of Ground: The Iowa 



Ornithologist, Vol. 3, No. 4, p. 48, October, 1897. 

 Circus hudsonius. Bailey, B. H., Two Hundred Wild Birds of Iowa, p. 62, 



1906. 

 Circus hudsonius. Widmann, Otto, A Preliminary Catalogue of the Birds 



of Missouri: Trans. Acad. Sci. of St. Louis, 1907, pp. 90-91. 

 Circus hudsonius. Woodruff, F. M., The Birds of the Chicago Area, p. 



72, 1907. 



Circus hudsonius. Anderson, R. M., The Birds of Iowa, p. 244, 1907. 

 Circus hudsonius. Bruner, L., Wolcott, R. H., Swenk, M. H., A Preliminary 



Review of the Birds of Nebraska, p. 50, 1909. 



Circus hudsonius. Cory, C. B., Birds of Illinois and Wisconsin, p. 455, 1909. 

 Circus hudsonius. A. O. U. Checklist, 1910, p. 155. 

 Circus hudsonius. Chapman, F. M., Birds of Eastern North America, p. 292, 



1912. 

 Circus hudsonius. Bunker, C. D., The Birds of Kansas, p. 146, 1913. 



