238 



INDEX 



Plumage in red-tailed hawk, 97 

 Porter, A. F., 34 

 Prairie Falcon, 38, 152 

 nesting habits of, 153 

 Prairie owl, 189 

 Preston, J. W., 47, bib. 49, 184 

 Primaries, 40 



Raptor '8, 46 



Rawson, Calvin, bib. 104 



Red Cedar river, bald eagle from, 148 



Red owl, 208 



Red-shouldered hawk, 38, 42, 115 



Red-tailed hawk, 38, 41, 93 



food of, 95 



habits of, 94 



plumage in, 97 



value of, 96 



Red-tailed hawk, eastern, 93 

 Red-tail, black, 112 



Krider's, 38, 108 



western, 38, 41, 110 

 Rhynchodon, 157 

 Rich, G. S., bib. 166 

 Richardson's owl, 45 

 Richardson's pigeon hawk, 38, 167 

 Ridgway. Robert, 27, bib. 49, 88. L'52. 



153 

 Rough-legged hawk, 38, 42, 133 



dark phase of, 42 



value of, 135 

 Rough leg, ferruginous, 38, 41, 139 



S 



St. John's hawk, 133 



Samuels, E. A. bib. 104 



Savage, David L., bib. 66, 204 



Savage, Walter G., bib. 50, 91, 132. 218 



Saw-whet owl, 38, 44, 203 



Say. Thomas, bib. 48 



Scotiaptex, 201 



nebulosa nebulosa, 201 

 Scott, J. H., 30, 53, 125 

 Screech owl, 38, 43, 45, 208 



plumage of, 209 



value of, 45, 210 

 Searles, W. W., bib. 55 

 Sharp-shinned hawk, 38, 43, 69 



damage by, 70 



Sheldon, Frank W., bib. 49, 171 

 Sheldon. Miss S. G. F., 34 

 Shellhorn. Joseph, 84, 88 

 Shoemaker. Frank H., bib. 50 

 Short-eared owl, 38, 44, 189 



nest of, 190 

 Sioux City, barn owl from, 179 



burrowing owl from, 233 



goshawks from. 84 

 Snowy owl, 38, 43, 223 



habits of, 224 

 Soutter, C. B., 33 

 Sparrow hawk, 38, 43, 45, 169 



food of, 170 



nesting of, 170 



value of, 45 



Spencer, Clementina Sinclair, 33 

 Speotyto, 231 



cunicularia hypofjaca, 231 

 Spirit Lake, turkey buzzard from. 47 

 Stephens. T. C.. 27. 84 



bibliography of, 27. 49 

 Stoddard. H. L.. 204 

 Stone, Witmer, Mi,. 55 

 Stoner. Dayton. 27 

 Storm Lake, pigeon-hawk from. 167 



prairie falcon from, 153 

 Story county, short-eared owl from. lS>o 



saw-whet owl from, 204 

 & trig 8, 178 



Strigidae, 183 

 Strix, 194 



varia varia, 194 

 Strode, W. L., bib. 14o 

 Stromsten, F. A., 30 

 Surnia, 228 



ulula caparoch, 228 

 Swallow-tailed kite, 38, 42, 51 



value of, 53 

 Swainson's hawk, 38, 119 



habits of, 120 

 Swenk, M. II., bib. 50 



Tail, extent of, 40 

 Tarsus, extent of, 40 

 Thiesen, Harold, 84 

 Thompson, A. V., bib. 144 

 Tinker. A. D., bib. 188 

 Tinnunculus, 162 



Topography, distribution related to. 34 

 Townsend, Manley P.. bib. 50 

 Trippe, T. M., bib. 49 

 Trostler, Isadore, bib. 49 

 Turkey buzzard. 46 

 vulture, 38, 46 



U 



Upper Iowa river, turkey buzzard from, 



Van Buren county, great horned owl 



from, 218 



Harris's hawk from, 91 



Mexican goshawk from. 133 

 Van Vleck, B. H., bib. 104 

 Vennor, H. G., bib. 104 

 Vincent, E. F., bib, 49 

 Vulture, turkey, 38. 46 

 Vultures, 51 



American, 46 



W 



Walcott, R. H., bib. 50 



Wall Lake, burrowing owl from. 233 



Wandering falcon, 157 



Ward, Henry, 61, 158 



Ward, James. 158 



Warren, B. H., bib. 49, 96, 104 



Warsaw, Illinois, western goshawk from. 



89 



Washington, D. C., duck hawk from. 158 

 Waubeck, bald eagle near. 148 

 Webster. E. B., 47, bib. 65 

 Western goshawk, 38, 88 



in Iowa. 12 



Western horned owl, 38, 43 

 Western Red-tail, 38, 41, 110 

 Wetmore, Alexander, 185 

 Whitcomb. Seldon L., bib. 171 

 White. H. G.. bib. 78 

 White headed eagle, 147 

 White owl, 223 

 Wiekham. IT. F., 27 

 Wild, Doc., bib. 151 

 Williams, H. S., bib, 49 

 Williams, John. bib. 182 

 Williams, Mrs. V. S., bib. 198 

 Wilson, Alexander, bib. 104 

 Wilson, B. H., bib. 66 

 Wing, extent of, 40 

 Winnebago county, pigeon hawk from. 



163 



Woodruff, R. M., bib. 50 

 Woods, Paul C.. bib. 79 

 Worthen. Charles K.. 88 



