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.