468 



BULLETIN 170, UNITED STATES NATIONAL MUSEUM 



Bailey, Mrs. Florence M., on Aplomado 

 falcon, 97. 



on desert sparrow hawk, 121. 



on fiammulated screech owl, 294. 



on Mexican screech owl, 275. 



on prairie falcon, 29, 30. 



on Rocky Mountain pygmy owl, 

 402, 403, 405, 406, 407. 



on saguaro screech owl, 284. 



on western burrowing owl, 387. 



on western horned owl, 324, 326. 

 Bailey, H. H., 398. 



on eastern pigeon hawk, 79. 



on Florida screech owl, 264, 265. 



on long-eared owl, 166. 

 Bailey, Vernon, 387, 403. 



on prairie falcon, 31. 



on western horned owl, 326. 

 Baird, S. F., Brewer, T. M., and Ridg- 

 way, Robert, 31. 



on American barn owl, 145. 



on American hawk owl, 380. 



on California pygmy owl, 421. 



on duck hawk, 53. 



on fiammulated screech owl, 293. 



on great gray owl, 214. 



on great horned owl, 299. 



on long-eared owl, 153. 

 Baker, E. C. S., on kestrel, 103. 

 Bancroft, Griffing, viii, 126. 

 Barigs, Outram, on saw-whet owl, 230. 



on screech owls, 259. 



on Texas barred owl, 201. 

 Bangs, Outram, and Thayer, J. E., on 



Guadalupe caracara, 137. 

 barbata, Scotiaptex nebulosa, 219. 

 Barbour, Thomas, on Audubon's cara- 

 cara, 133, 134. 

 Barn owl, American, 140. 

 Barn owls, 140. 

 Barnes, C. T., on western burrowing 



owl, 392. 

 Barnes, R. M., viii. 

 Barred owl, Florida, 197. 



northern, 182. 



Texas, 201. 

 Baynard, O. E., 126, 198. 

 Beaupre, Edwin, on duck hawk, 50. 

 Beck, R. H., 209. 



on Guadalupe caracara, 136. 

 Beebe, Francis, 409. 

 Beekman, O. E., on Pacific horned owl, 



335. 

 Beetz, Johan, on eastern pigeon hawk, 



76. 

 Belding, Lyman, 341. 



on California pygmy owl, 425. 



on California spotted owl, 202. 

 Bendire, C. E., on Aiken's screech owl, 

 276. 



on American barn owl, 140, 142, 

 149. 



on American hawk owl, 376. 



on Aplomado falcon, 96, 97. 



on Audubon's caracara, 132, 133. 



on black gyrfalcon, 11, 12. 



on black pigeon hawk, 84. 



on California pygmy owl, 419. 



Bendire, C. E., on California spotted 

 owl, 202. 

 on duck hawk, 49. 

 on eastern pigeon hawk, 72. 

 on eastern screech owl, 243, 245, 



246. 

 on eastern sparrow hawk, 108. 

 on ferruginous pygmy owl, 435, 436, 



437. 

 on fiammulated screech owl, 292. 

 on Florida barred owl, 198, 199, 200. 

 on Florida burrowing owl, 400, 401. 

 on Florida screech owl, 264. 

 on great horned owl, 296, 300, 302, 



311. 

 on Labrador horned owl, 343. 

 on long-eared owl, 156, 157, 163, 



164, 166. 

 on MacFarlane's screech owl, 277, 



278. 

 on Mexican screech owl, 274. 

 on Mexican spotted owl, 211. 

 on northwestern horned owl, 346. 

 on prairie falcon, 24, 30, 32, 33, 38. 

 on Richardson's owl, 222. 

 on Rockv Mountain pygmy owl, 

 401, 402, 403, 404, 405, 406, 407. 

 on Rocky Mountain screech owl, 



271, 272, 273. 

 on saguaro screech owl, 283, 284. 

 on saw-whet owl, 229, 230, 234, 239. 

 on short-eared owl, 171, 172. 

 on snowy owl, 360, 362. 

 on Texas screech owl, 266. 

 on western burrowing owl, 386, 387, 



389, 390, 392, 393. 

 on western horned owl, 323. 

 on Whitney's elf owl, 439, 441, 442. 

 bendirei, Falco columbarius, 70, 82, 88, 

 89. 

 Megascops, 277. 



Otus asio, 262, 266, 267, 280, 281. 

 Bennett, C. W., 47. 

 Bennett, L. J., and Errington, P. L., on 



western burrowing owl, 390. 

 Benson, H. C, 96. 



Bent, A. C, on eastern sparrow hawk, 

 109, 115. 

 on Montana horned owl, 349. 

 on prairie falcon, 20, 24, 35, 37. 

 Bergtold, W. H., 402. 



on Montana horned owl, 348. 

 on prairie falcon, 23. 

 on Rockv Mountain pygmy owl, 

 404, 408. 

 Betts, N. deW., on Rocky Mountain 



pygmy owl, 408. 

 Beyer, G. E., 300. 

 biarmicus feldeggii, Falco, 18. 

 Bicknell, Eugene, on short-eared owl, 



177. 

 Biological Survey, U. S. Bureau of, viii, 

 66, 83, 98, 152, 176, 197, 200, 212, 

 215, 241, 262, 321. 

 Bird, M. C. H., 102. 

 Birdseye, Clarence, 403. 

 Bishop, L. B., 155, 280. 



on Aiken's screech owl, 277. 



