752 



INDEX 



Asio accipitrinus 488 



Asio flammeus 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 collaris 335 



Aythya marila nearctica 333 



Aythya vallisneria 333 



B 



Baeolophus 697 



Baeolophus bicolor 697 



Baldpate (Duck) 324 



Bald Brant 349 



Bartramia 418 



Bartramia longicauda 418 



Beetle-head 425 



Birds of Prey 448 



Bittern, American 363 



Bittern, Cory's Least 365 



Bittern, Least : 364 



Bitterns 362 



Blackbird, Arctic Red- winged. . 556 



Blackbird, Brewer's 563 



Blackbird, Red- winged 555 



Blackbird, Rusty 562 



Blackbird, Yellow-headed 554 



Blackbirds 550 



Black-breast 425 



Blackhead (Duck) 333 



Bluebill (Duck) 333, 334 



Bluebird 714 



Bluebird, Mountain 715 



Bluebirds 705, 714 



Bobolink 551 



Bob-white. 432 



Bombycilla 624 



Bombycilla cedrorum 625 



Bombycilla garrula 624 



Bombycillidse 624 



Bonasa 436 



Bonasa umbellus 436 



Bonasa umbellus togata 437 



Botaurinse 363 



Botaurus 363 



Botaurus lentiginosus 363 



Brant 350, 353 



Brant, Bald 349 



Brant, Blue 349 



Brant, White 347. 34$ 



Brant Bird 431 



Branta 



Branta bernicla , 



Branta bernicla glaucogastra . . 



Branta canadensis 



Branta canadensis hutchinsii. . . 

 Branta canadensis minima. . . . 



Broadbill (Duck) 



Bubo 



Bubo virginianus 



Bubo virginianus pallescens. . . 

 Bubo virginianus subarcticus. . 



Bunting, Black-throated 



Bunting, Indigo 



Bunting, Painted 



Bunting, Snow 



Butcher Bird 



Buteo 



Buteo borealis 



Buteo borealis calurus 



Buteo borealis harlani 



Buteo borealis krideni 



Buteo latissimus 



Buteo lineatus 



Buteo platypterus 



Buteo swainsoni 



Buteoninae 



Butorides 



Butorides virescens 



Butter-ball (Duck) 



Butter-bill Coot 



Buzzard, Turkey 



c 



Calcarius 



Calcarius lapponicus , 



Calcarius pictus 



Calico-back 



Calidris 



Calidris arenaria 



Calidris leucophaea 



Campephilus 



Campephilus principalis 



Canachites 



Canachites canadensis canace . . 



Caprimulgi , 



Caprimulgidae 



Cardinal 



Cardinalis 



Cardinalis cardinalis 



Carpodacus 



Carpodacus purpureus 



Catbird 



Catharista , 



Catharista atrata 



Catharista urubu 



Cathartes 



Cathartes aura septentrionalis . 



Cathartidae 



Catoptrophorus 



Catoptrophorus semipalmatus. 

 Catoptrophorus semipalmatus 

 inornatus. . 



353 

 353 

 35i 

 352 

 352 

 328 



495 

 495 

 497 

 497 

 613 

 6n 

 612 



579 

 628 

 460 

 460 

 463 

 463 

 462 

 467 

 464 

 467 

 465 

 45 1 

 37 1 

 37 1 

 338 

 343 

 449 



580 

 580 



409 

 409 

 409 

 508 

 508 

 435 

 435 

 5 21 

 521 

 608 

 608 

 608 

 5 6 9 

 569 

 682 



449 

 449 

 449 

 449 

 449 

 448 

 416 

 416 



417 



