Asyndesmus, 165. 
Auk, Great, 13. 
Razor-billed, 12. 
Auklet, Cassin’s, 7. 
Crested, 7. 
Least, 8. 
Paroquet, 7. 
Rhinoceros, 6. 
Whiskered, 8. 
Auriparus, 312. 
flaviceps, 313. 
Avocet, American, 83. 
Aythya, 52. 
affinis, 53. 
americana, 52. 
collaris, 53. 
marila nearctica, 53. 
vallisneria, 53. 
BALDPATE, 49. 
Baptornis advenus, 335. 
Barornis regens, 339. 
Bartramia, 96. 
longicauda, 96. 
Basileuterus, 288. 
belli, 288. 
culicivorus, 288. 
Basilinna, 178. 
leucotis, 178. 
xantusi, 178. 
Becard, Xantus’s, 179. 
Bird, Man-of-War, 46. 
Red-billed Tropic, 39. 
Surf, 103. 
Yellow-billed Tropic, 39. 
Bittern, American, 70. 
Cory’s Least, 70. 
Least, 70. 
Blackbird, Bicolored, 205. 
Brewer’s, 209. 
Red-winged, 204. 
Rusty, 209. 
Tricolored, 205. 
Yellow-headed, 204. 
Bluebird, 322. 
Azure, 322. 
Chestnut-backed, 323. 
Mountain, 323. 
San Pedro, 322. 
Western, 322. 
Bluethroat, Red-spotted, 321. 
Bobolink, 202. | 
Bob-white, 106. 
Florida, 106. 
Masked, 107. 
Texan, 107. 
INDEX. 
349 
Bonasa, I12. 
umbellus, 112. 
umbellus sabini, 112. 
umbellus togata, I12. 
umbellus umbelloides, 112. 
Booby, 40. 
Blue-faced, 40. 
Blue-footed, 4o. 
Brewster’s, 40. 
Red-footed, 4o. 
Botaurinz, 69. 
Botaurus, 69. 
lentiginosus, 70. 
Brachyramphus, 9. 
craveri, Io. 
hypoleucus, 9. 
kittlitzii, 9. 
marmoratus, 9. 
Brant, 63. 
Black, 63. 
Branta, 62. 
bernicla, 63. 
canadensis, 62. 
canadensis hutchinsil, 62. 
canadensis minima, 63. 
canadensis occidentalis, 62. 
hypsibatus, 341. 
leucopsis, 63. 
nigricans, 63. 
propinqua, 341. 
Bubo, 147. 
leptosteus, 344. 
virginianus, 148. 
virginianus arcticus, 148. 
virginianus saturatus, 148. 
virginianus subarcticus, 148. 
Bubonide, 142. 
Budytes, 289. 
flavus leucostriatus, 289. 
Buffle-head, 54. 
Bullfinch, Cassin’s, 212. 
Bulweria, 34. 
bulweri, 35. 
Bunting, Beautiful, 252. 
Indigo, 252. 
Lark, 254. 
Lazuli, 252. 
Painted, 252. 
Townsend’s, 331. 
Varied, 252. 
Burrica, 213. 
Bush-Tit, 311. 
Californian, 311. 
Grinda’s, 312. 
Lead-colored, 312. 
Lloyd’s, 312. 
Santa Rita, 312. 
