752 



Index 



Asio accijMtrinus 488 



Asio llamineus 488 



Asio wilsonianus 486 



Astragalinus 577 



Astragalinus tristis 577 



Astur 458 



Astur atricapillus 458 



Astur atricapillus striatulus. . . . 460 



Asturina 469 



Asturina plagiata 469 



Auk, Little 280 



Auks 279 



Avocet, American 392 



Avocets 392 



Aythya affinis 334 



Aythya americana 332 



Aythya coUaris 335 



Aythya marila nearctica 333 



Aythya vallisneria 333 



B 



Baeolophus 



BtEolophus bicolor 



Baldpate (Duck) 



Bald Brant 



Bartramia 



Bartramia longicauda 



Beetle-head 



Birds of Prey 



Bittern, American 



Bittern, Cory's Least 



Bittern, Least 



Bitterns 



Blackbird, Arctic Red-winged. . 



Blackbird, Brewer's 



Blackbird, Red-winged 



Blackbird, Rusty 



Blackbird, Yellow-headed 



Blackbirds 



Black-breast 



Blackhead (Duck) 



Bluebill (Duck) 333, 



Bluebird 



Bluebird, Mountain 



Bluebirds 705, 



Bobolink 



Bob-white 



Bombycilla 



Bombycilla cedrorum 



Bombycilla garrula. . .' 



Bombycillidae 



Bonasa 



Bonasa umbellus 



Bonasa umbellus togata 



.Hiotaurins 



Botaurus 



Botaurus lentiginosus 



Brant 350. 



Brant, Bald 



Brant, Blue 



Brant, White 347. 



Brant Bird 



697 

 097 

 324 

 349 

 418 

 418 



425 

 448 

 363 

 365 

 364 

 -,62 



556 



555 

 562 



554 

 550 

 425 

 333 

 334 

 714 

 715 

 714 

 551 

 432 

 624 

 625 

 624 

 624 

 436 

 436 

 437 

 363 

 363 

 363 

 353 

 349 

 349 

 348 

 431 



Branta 351 



Branta bernicla 353 



Branta bernicla glaucogastra . . . 353 



Branta canadensis 351 



Branta canadensis hutchinsii. ... 352 



Branta canadensis minima 352 



Broadbill (Duck) 328 



Bubo 495 



Bubo virginianus 495 



Bubo virginianus pallescens. ... 497 



Bubo virginianus subarcticus. . . 497 



Bunting, Black-throated 613 



Bunting, Indigo 611 



Bunting, Painted 612 



Bunting, Snow 579 



Butcher Bird 628 



Buteo 460 



Buteo borealis 460 



Buteo borealis calurus 463 



Buteo borealis harlani 463 



Buteo borealis krideni 462 



Buteo latissimus 467 



Buteo lineatus 464 



Buteo platypterus 467 



Buteo swainsoni 465 



Buteoninas 451 



Butorides 371 



Butorides virescens 371 



Butter-ball (Duck) 338 



Butter-bill Coot 343 



Buzzard, Turkey 449 



c 



Calcarius 580 



Calcarius lapponicus 580 



Calcarius pictus 581 



Calico-back 431 



Calidris 409 



Calidris arenaria 409 



Calidris leucophaea 409 



Campephilus 508 



Campephilus principalis 508 



Canachites 435 



Canachites canadensis canace. .. 435 



Caprimulgi 521 



Caprimulgidse 521 



Cardinal 608 



Cardinalis 608 



Cardinalis cardinalis 608 



Carpodacus 569 



Carpodacus purpureus 569 



CatlDird 682 



Catharista 449 



Catharista atrata 449 



Catharista urubu 449 



Cathartes 449 



Cathartes aura septentrionalis . . 449 



Cathartidae 448 



Catoptrophorus 416 



Catoptrophorus semipalmatus. . 416 

 Catoptrophorus semipalmatus 



inornatus 417 



