INDEX 



391 



Birds, land, migrating in Alaska, Yukon 

 and western Mackenzie, 266 (ta- 

 ble), 269 (table) 

 present in winter, 264 (table) 

 residents of northern forests, 251 

 (table) 

 summer, in valley of Anaktuvuk 



Pass, 253 (table) 

 winter, on American Pacific coasts, 



267 (table) 

 winter, in valley of Anaktuvuk 

 Pass, 249 (table) 

 Bishop, Louis Bennett, 29, 185, 242, 256, 



261 

 Blackbird, 111, 229 



rusty. 111, no, 254 

 Blan chard, Barbara D., 328 

 Bluebird, 97, 146, 216 

 Bluethroat, red-spotted, 101, 260, 274 

 Bomby cilia garrula pallidiceps, 108, 222, 



248, 251, 264 

 Bomby cillidae (waxwings), 108, 222, 



248, 259 

 Bonasa umbellus, 137, 185, 247 



umbellus yukonensis, 264 

 borealis, Colaptes auratus, 85, 142, 207, 

 247, 253 

 Nuttallornis, 209, 247, 269 

 Phylloscopus, 147 

 boreophila, Spizella passerina, 257 

 brachyrhynchus, Larus canus, 80, 202, 



247, 267, 288 

 Brandt, Herbert, 127 

 Brant, Pacific black, 35, 166, 202, 343 

 Branta canadensis, 34 



canadensis canadensis, 263 (fig.) 

 canadensis parvipes, 164 (table), 165 

 canadensis taverneri, 34, 134, 162, 

 164 (table), 165, 246, 252, 265, 

 266, 269, 288, 316 

 hutchinsii, 134 

 leucopaeia, 34, 134, 165 

 minima, 134, 165 



nigricans, 35, 134, 165, 246, 267, 

 288, 316, 338, 343 

 Breeding cycle, adaptation of, 308 

 and migration, 305 

 environmental influence on, 308 

 of species, 40 (greater scaup), 

 58 and 189 (Rock ptarmigan), 

 67-68 (wandering tattler), 61-62 

 (American golden plover), 75 

 (semipalmated sandpiper), 97 and 



Breeding cycle — Continued 



216 (robin), 120-123 and 236 

 (white crowned sparrow), 123 and 

 126 (longspur), 177 and 179 

 (Scoter), 212 (cliflf swallow), 217 

 (varied trush) , 225 (yellow warb- 

 ler), 239 (foxsparrow) 

 synchrony of, 236, 239 

 Bridges, Esteban Lucas, 50 

 Brody, Samuel, 236 

 Brooding, 310 

 Brooks, Winthrop Sprague, 177, 256, 



260 

 Brower, Charles, iv, 5, 257 

 Brower, Thomas, iv, v, 5, 24, 25, 37, 

 38, 45, 47, 60, 69, 72, 73, 79, 

 81, 88, 90, 91, 95, 99, 105, 107, 

 112, 114, 118, 121, 126, 138, 

 253, 257, 275, 289 

 Brown, Harry, trader, 132, 257 

 Bruce, Robert, guide, 156, 158, 163, 

 174, 181, 204, 205, 207, 209, 220 

 Bryant, Joe, 181, 207 

 Bubo algistus, 205 

 saturatus, 205 

 virginianus lagophonus, 82, I4I1 



205, 247, 251, 253, 264 

 wapacuthu, 205 

 buccinator, Cygnus, 162 

 Bucephala, 168 



albeola, 135, 246, 267 

 clangula, 260, 272 



clangula americana, 174, 246, 267 

 islandica, 175, 246, 260, 267 

 Buckley, John L., 59, 158 

 Bufflehead, 135 

 Bumblebees, 21 

 Bunting, 111, 148, 230 



snow, 127, 148, 230, 242, 250, 259 

 265, 270, 280, 293, 303, 307, 313 

 Burch, George, 157 

 Burleigh, Thomas D., and Peters, 



H. S., 227 

 Bushtits, 94, 145, 215 

 Buss, Irven O., 66 



Buleo lagopus, 46, 180, 247, 288, 303, 307 

 lagopus s.johannis, 46 



Cade, Tom, 46, 59, 90, 166, 252 

 Calcarius, 230, 255 

 lapponicus, 313 



