THE RAPTORIAL BIRDS OF IOWA 



Fig. 82. Map showing the distribution in Iowa of the Great Gray Owl. 



Scotiaptex nebulosa nebulosa (J. R. Forster). 



*Allen, J. A., Catalogue of the Birds of Iowa: Geology of Iowa, White, 



Vol. 2, App. B, p. 424, 1870. 

 *Trippe, T. M., Notes on the Birds of Southern Iowa: Proceedings of 



the Boston Society of Natural History, Vol. 15, p. 233, 1872. (Mahaska 



County.) 



Warren, B. H., Birds of Pennsylvania, p. 238, 1888. 

 Ridgway, R., Ornithology of Illinois, p. 410, 1889. 

 Hatch, Dr. P. L., Birds of Minnesota, p. 211, 1892. 

 Bendire, Capt. Chas., Life Histories of North American Birds, p. 345, 



1892. 



Fisher, A. K., Hawks and Owls of the U. S., p. 157, 1893. 

 Woodruff, F. M., Birds of the Chicago Area, p. 103, 1907. 

 Anderson, R. M., Birds of Iowa, p. 261, 1907. 

 Widmann, Otto, A Preliminary Catalogue of the Birds of Missouri: 



Trans. Acad. Sci., St. Louis, pp. 107, 108, 1907. 

 Cory, C. B., Birds of Illinois and Wisconsin, p. 490, 1909. 

 Bruner, L., Wolcott, R. H., Swenk, M. H., A Preliminary Review of the 



Birds of Nebraska, p. 55, 1909. 

 A. O. U. Check-List, p. 171, 1910. 



Chapman, F. M., Birds of Eastern North America, p. 312, 1912. 

 Ridgway, R., Birds of North and Middle America, Part VI, Bulletin 50, 



U. S. Nat. Mus., p. 635, 1914. 



