INDEX 
509 
Socorro Petrel, 38. 
Solitaire, Townsend, 467. 
Solitary Sandpiper, 97. 
Song- Sparrow, 356. 
Sonora Yellow Warbler, 411. 
Sonoran Red-wing, 290. 
Sooty Albatross, 33. 
Fox Sparrow, 361. 
Grouse, 125. 
Song Sparrow, 358. 
Sora, 81. 
Southern White-tailed Ptarmigan, 
129. 
Southwest Bewick Wren, 447. 
Sparrow, Baird, 333. 
Belding Marsh, 332. 
Bell, 351. 
Bendire, 353. 
Black-chinned, 345. 
-throated, 350. 
Botteri, 352. 
Brewer, 343. 
Bryant Marsh, 332. 
Cassin, 352. 
Clay-colored, 342. 
Desert, 350. 
Song, 357. 
English, 324. 
Forbush, 360. 
Fox, 360. 
Gambel, 339. 
Golden-crowned, 339. 
Harris, 337. 
Hawk, 170. 
Heermann Song, 357. 
Intermediate, 339. 
Large-billed, 333. 
Lark, 336. 
Leconte, 335. 
Lincoln, 359. 
Mendocino Song, 358. 
Merrill Song, 359. 
Mountain Song, 357. 
Nelson, 335. 
Nuttall, 339. 
Oregon Song, 358. 
Vesper, 330. 
Rock, 355. 
Rufous-crowned, 354. 
-winged, 353. 
Rusty Song, 358. 
Sage, 351. 
Salt Marsh Song, 358. 
Samuels Song, 358. 
San Clemente Song, 359. 
Diego Song, 357. 
Sandwich, 331. 
Santa Barbara Song, 358. 
Cruz Song, 357. 
Scott, 354. 
Slate-colored, 362. 
Song, 356. 
Sooty Fox, 361. 
Song, 358. 
Stephens, 363. 
Swamp, 360. 
Tehama Song, 358. 
Texas, 363. 
Seaside, 335. 
Thick-billed, 362. 
Townsend, 361. 
Western Chipping, 342. 
Field, 344. 
Grasshopper, 334. 
Henslow, 334. 
Lark, 336. 
Savanna, 332. 
Tree, 341. 
Vesper, 329. 
White-crowned, 338. 
-throated, 340. 
Worthen, 344. 
Yakutat Fox, 361. 
Spatula, 44, 54. 
clypeata, 54. 
Speotyto, 175 , 189. 
cunicularia hypogsea, 189. 
Sphyrapicus, 200, 210. 
ruber, 210,211. 
notkensis, 210, 212. 
thyroideus, 210, 212. 
varius, 210. 
nuchalis, 210, 211, 212. 
Spinus, 304 , 323. 
pinus, 323. 
Spiza, 305 , 377. 
americana, 377. 
Spizella, 305 , 341. 
atrogularis, 341 , 345. 
breweri, 341 , 343. 
monticola ochracea, 341. 
pallida, 341 , 342. 
pusilla arenacea, 341 , 344. 
socialis arizonse, 341 , 342. 
wortheni, 341 , 344. * 
Spoonbill, 54. 
Sporophila, 306 , 376. 
morelleti sharpei, 376. 
Spotted Owl, 178. 
Sandpiper, 100. 
Screech Owl, 184. 
Sprague Pipit, 432. 
