Aquila chrysaetos, 215

Aramidae, 129

Aramus vociferus, 129

Archibuteo ferrugineus, 215
lagopus sancti-johannis, 214

Archilochus alexandri, 273
" colubris, 273

Page 452

Arctonetta fischeri, 102

Ardea cinerea, 122
" herodias, 121
" fannini, 121
" wardi, 122
" occidentalis, 121

Ardeidae, 119

Arenaria interpres interpres, 169
melanocephala, 170
morinella, 169

Arquatella maritima couesi, 146
ptilocnemis, 147
maritima maritima, 146

Arremonops rufivirgatus, 357

Asio accipitrinus, 229
" flammeus, 229
" wilsonianus, 227

Astragalinus lawrencei, 331
psaltria psaltria, 331
tristis tristis, 329
" pallidus, 331
" salicamans, 331

Astur atricapillus atricapillus, 205
" striatulus, 207

Asturina plagiata, 214

Asyndesmus lewisi, 257

Atthis morcomi, 278

Auk, Great, 33-32
Razor-billed, 31

Auklet, Cassin's, 24
Crested, 26
Least, 27
Paroquet, 26
Rhinoceros, 23
Whiskered, 26

Auriparus flaviceps flaviceps, 439
" lamprocephalus, 439

Avocet, 139

Baeolophus atricristatus atricristatus, 433
bicolor, 433
inornatus inornatus, 434
" cineraceus, 434
" griseus, 434
wollweberi, 434

Baldpate, 92

Bartramia longicauda, 156

Basilinna leucotis, 279
xantusi, 279

Becard, Xantus's, 280

Bittern, 119
Cory's Least, 120
Least, 120

Blackbird, Bicolored, 317
Brewer's, 322
Red-winged, 316
Rusty, 322
Tricolored, 317
Yellow-headed, 315

Bluebird, 448
Azure, 448
Chestnut-backed, 450
Mountain, 450
San Pedro, 450
Western, 450

Bluethroat Siberian Red-spotted, 448

Bobolink, 314

Bob-white, 175
Florida, 175
Masked, 175
Texan, 175

Bombycilla cedrorum, 375
garrula, 375

Bombycillidae, 375

Bonasa umbellus umbellus, 180
" sabini, 182
" togata, 182
" umbelloides, 182

Booby, 75
Blue-faced, 74
Blue-footed, 74
Brewster's, 75
Red-footed, 75

Botaurus lentiginosus, 119

Brachyramphus brevirostris, 27
craveri's, 28
hypoleucus, 27
marmoratus, 27

Brant, 111
Black, 111

Branta bernicla glaucogastra, 111
canadensis canadensis, 109
" hutchinsi, 109
" minima, 109
" occidentalis, 109
leucopsis, 112

Branta nigricans, 111

Bubo virginianus virginianus, 235
" ela