INDEX 
491 
Auriparus, 452, 462. 
flaviceps, 462. 
Avocet, 86. 
Aythya, 45, 56. 
affinis, 56, 58. 
americana, 56. 
collaris, 56, 59. 
marila, 56, 57, 59. 
vallisneria, 56, 57. 
Aztec Wren, 449. 
Azure Bluebird, 476. 
Baird Sandpiper, 92. 
Sparrow, 333. 
Wren, 447. 
Baldpate, 50. 
Baltimore Oriole, 297. 
Band-tailed Pig-eon, 138. 
Bank Swallow, 386. 
Barn Owl, 173. 
Swallow, 384. 
Barred Owl, 178, 179. 
Barrow Golden -eye, 60. 
Bartramia, 87, 99. 
longicauda, 99. 
Bartramian Sandpiper, 99. 
Basilinna, 233, 243. 
leucotis, 243. 
Batclielder Woodpecker, 203. 
Beardless Flycatcher, 265. 
Becard, Xantus, 245. 
Belding Jay, 276. 
Marsh Sparrow, 332. 
Bell Sparrow, 351. 
Vireo, 399. 
Belted Kingfisher, 198. 
Piping Plover, 104. 
Bendire Sparrow, 353. 
Thrasher, 439. 
Bicolored Blackbird, 291. 
Bittern, American, 73. 
Least, 74. 
Black and White Warbler, 402. 
-bellied Plover, 102. 
Tree Duck, 69. 
-billed Cuckoo, 196. 
Magpie, 270. 
Brant, 68. 
-capped Vireo, 397. 
-chinned Hummingbird, 235. 
Sparrow, 345. 
-crested Titmouse, 455. 
-crowned Night Heron, 77. 
-footed Albatross, 32. 
-fronted Warbler, 415. 
-headed Grosbeak, 372. 
Jay, 273. 
Leucosticte, 317. 
Merlin, 169. 
Oyster-catcher, 107. 
Petrel, 38. 
Phoebe, 255. 
-poll Warbler, 416. 
Rail, 82. 
Swift, 229. 
-tailed Gnatcatcher, 466. 
-throated Blue Warbler, 412. 
Gray Warbler, 418. 
Green Warbler, 420. 
Loon, 10. 
Sparrow, 350. 
Turnstone, 107. 
-vented Shearwater, 35. 
Vulture, 146. 
Blackbird, Bicolored, 291. 
Brewer, 300. 
Red-winged, 290. 
Rusty, 290. 
Tricolored, 292. 
Yellow-headed, 288. 
Blackburnian Warbler, 417. 
Blue-bill, 57. 
-eared Jay, 274. 
-fronted Jay, 273. 
-gray Gnatcatcher, 465. 
-headed Vireo, 396. 
-throated Hummingbird, 234. 
-winged Teal, 52. 
Bluebird, 475. 
Azure, 476. 
Chestnut-backed, 476. 
Mountain, 476. 
Western, 476. 
Bobolink, 286. 
Bob-white, 115. 
Masked, 116. 
Texan, 116. 
Bohemian Waxwing, 388. 
Bonaparte Gull, 25, 26. 
Sandpiper, 92. 
Bonasa, 114, 127. 
umbellus sabini, 127, 128. 
togata, 127. 
umbelloides, 127, 128. 
Botaurus, 72, 73. 
lentiginosus, 73. 
Brachyramphus, 12, 15. 
hypoleucus, 15, 16. 
marmoratus, 15. 
Brant, Black, 68. 
Branta, 45, 67. 
canadensis, 67. 
