INDEX 
503 
Violet-green Swallow, 386. 
Northwest Bewick Wren, 447. 
Coast Heron, 75. 
Crow, 282. 
Saw-whet Owl, 181. 
Northwestern Flicker, 221. 
Red-wing, 291. 
Nucifraga, 269,282. 
Columbiana, 282. 
Numenius, 87, 101. 
borealis, 101, 102 . 
hudsonicus, 101, 102 . 
longirostris, 101 . 
Nutcracker, Clarke, 282. 
Nuthatch, Pygmy, 454. 
Red-breasted, 454. 
Rocky Mountain, 453. 
Slender-billed, 453. 
White-breasted, 453. 
Nuttall Sparrow, 339. 
Woodpecker, 205. 
Nuttallornis, 257. 
Nutting Flycatcher, 253. 
Nyctala, 175, 179. 
acadica, 180. 
scotaea, 180, 181. 
tengmalmi richardsoni, 179,180. 
Nyctanassa, 78. 
Nyctea, 175, 187. 
nyctea, 187. 
Nycticorax, 73, 77. 
nycticorax nsevius, 77. 
violaceus, 78. 
Nyctidromus, 222, 225. 
albicollis merrilli, 225. 
Oceanodroma, 33, 37. 
furcata, 37. 
homochroa, 37, 38. 
kaedingi,. 37. 
leucorhoa, 37. 
melania, 37, 38. 
socorroensis, 37, 38. 
Ochthodromus, 105. 
Oidemia, 45, 62, 63. 
americana, 62, 63. 
deglandi, 62, 63. 
perspicillata, 62, 63. 
Olbiorchilus, 434, 449. 
hiemalis pacificus, 449. 
Old-squaw, 61. 
Olivaceous Flycatcher, 253. 
Olive-backed Thrush, 470. 
-sided Flycatcher, 257 
Warbler, 410. 
Olor, 45, 70. 
buccinator, 70. 
columbianus, 70. 
Oporornis, 424. 
Orange-crowned Warbler, 404. 
Orchard Oriole, 296. 
Oregon Chickadee, 458. 
Jay, 278. 
Junco, 347. 
Ruffed Grouse, 128. 
Song Sparrow, 358. 
Towhee, 365. 
Vesper Sparrow, 330. 
Oreortyx, 114, 117. 
pictus, 117. 
plumiferus, 117. 
Oreospiza, 306, 368. 
chlorura, 368. 
Oriole, Arizona Hooded, 296. 
Audubon, 294. 
Baltimore, 297. 
Bullock, 298. 
Orchard, 296. 
Scott, 294. 
Sennett, 295. 
Ornithion, 245, 265. 
imberbe, 265. 
ridgwayi, 265. 
Oroscoptes, 433, 435. 
montanus, 435. 
Ortalis, 137. 
vetula maccalli, 137. 
Ossifraga, 33, 34. 
gigantea, 34. 
Otocoris, 265, 266. 
alpestris actia, 266, 268. 
adusta, 266, 268. 
aphrasta, 268. 
arcticola, 267. 
giraudi, 266, 268. 
hoyti, 266, 269. 
insularis, 266, 269. 
leucolaema, 266, 267. 
merrilli, 266, 268. 
occidentalis, 266, 269. 
pallida, 266, 268. 
praticola, 266, 267. 
rubea, 266, 268. 
strigata, 266, 268. 
Ouzel, Water, 432. 
Oven-bird, 423. 
Owl, Aiken Screech, 184. 
American Hawk, 188. 
Arctic Horned, 186. 
Barn, 173. 
Barred, 178. 
