752 



Index 



Asio accipitrinus 488 



Asio flamnieus 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 



Ay thy a americana 332 



Aythya collaris 335 



Aythya marila nearctica 333 



Aythya vallisneria 333 



B 



Baeolophus 697 



Baeolophus bicolor 697 



Baldpate (Duck) 324 



Bald Brant 349 



Bartraniia 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 



Bombycillidas 624 



Bonasa 436 



Bonasa umbellus 436 



Bonasa umbellus togata 437 



Botaurinag 363 



Botaurus 363 



Botaurus lentiginosus 363 



Brant 350, 353 



Brant, Bald 349 



Brant, Blue 349 



Brant, White 347, 348 



Brant Bird 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 



Buteoninae 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 leucophsea 409 



Campephilus 508 



Campephilus principalis 508 



Canachites 435 



Canachites canadensis canace. .. 435 



Caprimulgi 521 



Caprimulgidae 521 



Cardinal 608 



Cardinalis 608 



Cardinalis cardinalis 608 



Carpodacus 569 



Carpodacus purpureus 569 



Catbird 682 



Catharista 449' 



Catharista atrata 449 



Catharista urubu 449 



Cathartes 449 



Cathartes aura septentrionalis . . 449 



Cathartidas 448 



Catoptrophorus 416 



Catoptrophorus semipalmatus. . 416 

 Catoptrophorus semipalmatus 



inornatus 417 



