O.
Oriele, Bullock's 248
Osprey, American 170
Owl, American Long-eared 171
Owl, Short-eared 172
Owl, Northern Spotted 173
Owl, Great Gray 174
Owl, Richardson's 175
Owl, Saw-whet 176
Owl, North-West Saw-whet 176A
Owl, Kennicott's Screech 177
Owl, Macfarlane's Screech 178
Owl, Great Horned 179
Owl, Western Horned 180
Owl, Arctic Horned 181
Owl, Dusky Horned 182
Owl, Snowy 183
Owl, American Hawk 184
Owl, Burrowing 185
Owl, Pygmy 186
Owl, California Pygmy 187
Oyster-catcher, Black 131
P.
Partridge, Mountain 132
Partridge, California 133
Pelican, American White 46
Pelican, California Brown 47
Petrel, Gray Fork-tailed 41
Petrel, Leach's 42
Pewee, Western Wood 222
Phalarope, Red 97
Phalarope, Northern 98
Phalarope, Wilson's 99
Pheasant, Ring-necked 145
Phoebe, Say's 220
Pigeon, Band-tailed 146
Pigeon, Passenger 147
Pipit, American 331
Plover, American Golden 125
Plover, Black-bellied 124
Plover, Killdeer 126
Plover, Semipalmated 127
Poor-Will 208
Ptarmigan, Willow 140
Ptarmigan, Rock 141
Ptarmigan, White-tailed 142
Puffin, Tufted 10
Puffin, Horned 11
R.
Rail, Virginia 94
Rail, Carolina 95
Raven, Northern 237
Redpoll, Hoary 259
Redpoll 260
Redstart, American 330
Robin, American 358
Robin, Western 359
S.
Sanderling 111
Sandpiper, Stilt 102
Sandpiper, Sharp-tailed 104
Sandpiper, Pectoral 105
Sandpiper, Baird's 106
Sandpiper, Least 107
Sandpiper, Red-backed 108
Sandpiper, Semipal mated 109
Sandpiper, Western Semipalmated 110
Sandpiper, Solitary 115
Sandpiper, Western Solitary 116
Sandpiper, Bartramian 119
Sandpiper, Buff-breasted 120
Sandpiper, Spotted 121
Sapsucker, Red-naped 200
Sapsucker, Red-breasted 201
Sapsucker, Williamson's 202
Shrike, Northern 305
Shrike, White-rumped 306
Shearwater, Black-vented 38
Shearwater, Dark-bodied 39
Shearwater, Slender-billed 40
Siskin, Pine 263
Snipe, Wilson's 100
Snowflake 265
Solitaire, Townsend's 352
Sparrow, House 264
Sparrow, Western Vesper 268
Sparrow, Oregon Vesper 269
Sparrow, Sandwick 270
Sparrow, Western Savanna 271
Sparrow, Western Grasshopper 272
Sparrow, Western Lark 273
Sparrow, Harris's 274
Sparrow, Gambel's 275
Sparrow, Nuttall's 276
Sparrow, Golden-crowned 277
Sparrow, Western Tree 278
Sparrow, Western Chipping 279
Sparrow, Clay-colored 280
Sparrow, Brewer's 281
Sparrow, Rusty Song 285
Sparrow, Sooty Song 286
Sparrow, Lincoln's 287
Sparrow, Forbush's 288
Sparrow, Townsend's 289
Sparrow, Slate-coloured 290
Surf-bird 128
Swan, Whistling 85
Swan, Trumpeter 86
Swallow, Cliff 297
Swallow, Barn 298
Swallow, White-bellied 299
Swallow, Northern violet-green 300
Swallow, Bank 301
Swallow, Rough-winged 302
Swift, Black 211
Swift, Vaux 212
T.
Tanager, Louisaria 295
Tatler, Wandering 118
Tern, Common 32
Tern, Arctic 33
Tern, Black 34
Thrush, Willow 353
Thrush, Russet-backed 354
Thrush, Olive-backed 355
Thrush, Alaska Hermit 356
Thrush, Audubon's 357
Thrush, Varied 360
Towhee, Spurred 291
Towhee, Oregon 292
Turnstone 129
Turnstone, Black 130