480 



BULLETIN 17 0, UNITED STATES NATIONAL MUSEUM 



Skinner, M. P., on coast pygmy owl, 430. 

 on dusky horned owl, 330. 

 on Montana horned owl, 348. 

 on Pacific horned owl, 333. 

 on prairie falcon, 18. 

 on Rocky Mountain pvgmy owl, 



401. 

 on Vancouver pygmy owl, 428. 

 on western horned owl, 322. 

 on western pigeon hawk, 89. 

 Smith, George, on Pacific horned owl, 



338. 

 Smith, H. A. P., on great horned owl, 



319. 

 Smith, P. W., Jr., 300. 

 Smith, W. A., 128. 

 Smith, W. G., 271, 402. 



on flammulated screech owl, 292. 

 Smyth, E. A., Jr., on eastern sparrow 



hawk, 113. 

 Snowy owl, 358. 

 Snyder, L. L., on American hawk owl, 



378. 

 Soper, J. D., on great horned owl, 319. 

 Southern screech owl, 259. 

 Sparrow hawk, desert, 121. 

 eastern, 106. 

 little, 125. 

 San Lucas, 124. 

 sparverius, Falco sparverius, 106. 

 sparverius deserticolus, Falco, 121, 124. 

 sparverius isabellinus, Cerchneis, 125. 

 sparverius paulus, Falco, 119, 125. 

 sparverius peninsularis, Falco, 119, 124. 

 sparverius phalaena, Falco, 119, 121, 



124. 

 sparverius sparverius, Falco, 106. 

 Speotyto cunicularia amaura, 394. 

 cunicularia cunicularia, 395. 

 cunicularia floridana, 394, 396. 

 cunicularia guadeloupensis, 394. 

 cunicularia hypugaea, 384, 397. 

 cunicularia rostrata, 395. 

 cunicularia troglodytes, 394. 

 floridana floridana, 396. 

 Spotted screech owl, 286. 

 Spotted owl, California, 202. 



Mexican, 209. 

 Sprunt, Alexander, Jr., on American 

 barn owl, 150. 

 on duck hawk, 59. 

 Stapleton, R. P., 61. 

 Steidl, John, on eastern sparrow hawk, 



113. 

 Stejneger, Leonhard, 365. 



on Asiatic gyrfalcon, 16. 

 Stephens, Frank, 441. 



on California spotted owl, 206. 

 on ferruginous pygmy owl, 437. 

 on Whitney's elf owl, 442. 

 Stockard, C. R., on Florida barred owl, 

 198, 199. 

 on sparrow hawk, 110. 

 Stone, C. F., on great horned owl, 305, 



317. 

 Stoney, C. V., 106. 

 Storer, T. I., 423. . 



Storer, T. I., and Grinnell, Joseph, on 

 American barn owl, 149. 

 on California pygmy owl, 424, 426. 

 on California spotted owl, 206. 

 on great gray owl, 213, 219. 

 on long-eared owl, 157, 161, 163, 



164. 

 on Pacific horned owl, 338, 340. 

 Strecker, J. K., Jr., on Audubon's 



caracara, 130. 

 Strigidae, 153. 

 Strigiformes, 140. 

 Strix aluco, 174. 

 asio, 243. 

 nebulosa, 197. 



occidentalis caurina, 208, 210, 434. 

 occidentalis huachucae, 209, 210. 

 occidentalis lucida, 208, 209. 

 occidentalis occidentalis, 202, 208, 



210. 

 varia albescens, 201. 

 varia alleni, 197. 

 varia brunnescens, 201. 

 varia helveola, 197, 201. 

 varia varia, 182. 

 Stuart, E. T., Jr., viii. 

 Stuart, G. H., 3d, viii. 

 subaesalon, Falco aesalon, 90, 95. 

 subarticus, Bubo virginianus, 320 321, 



328, 348. 

 subbuteo, Falco, 88, 93. 

 Suckley, George, 31. 

 suckleyi, Falco columbarius, 70, 82, 83, 



89. 

 Sugden, J. W., on desert sparrow hawk, 

 123. 

 on western horned owl, 324. 

 Sumner, E. L., Jr., 140, 302. 



on American barn owl, 142, 144. 



on long-eared owl, 158, 159. 



on Pacific horned owl, 336, 337, 



338, 339, 340. 

 on Pasadena screech owl, 281. 

 Sumner, Mrs. Florence A., on California 



screech owl, 266. 

 Surface, H. A., on great horned owl, 312. 

 Surnia ulula caparoch, 375. 

 ulula pallasi, 374, 384. 

 ulula ulula, 375. 

 Sutton, G. M., on black pigeon hawk, 84. 

 on eastern screech owl, 251, 252. 

 on great horned owl, 312. 

 on long-eared owl, 161. 

 on northern barred owl, 191, 192. 

 on snowy owl, 359, 360, 362, 368, 

 369. 

 Swainson, William, and Richardson, 



John, on American hawk owl. 376. 

 Swales, B. H., and Taverner, P. A., on 

 eastern pigeon hawk, 77. 

 on saw-whet owl, 238. 

 Swann, H. K., on Guadalupe caracara, 

 137. 

 on pigeon hawk, 73. 

 Swarth, H. S., 348. 



on black pigeon hawk, 85. 



on California pygmy owl, 413. 



