Snowy Owl, 1119. 



Plover, 13 14. 

 Socorro Petrel, 2021. 

 Solitaire, Townsend's, 785. 

 Solitary Vireo, 570. 

 Solitary Vireo, Cassin's, 570. 

 Solitary Sandpiper, Western, 1268 

 Somateria spectabilis, 1828. 

 Song Sparrow, 337. 

 Song Sparrow, Alameda, 349. 



Heermann's, 354. 



Lincoln's, 359. 



Mailliard's, 355. 



Marin, 348. 



Mendocino, 347. 



Merrill's, 356. 



Modesto, 355. 



Modoc, 356. 



Oregon, 347. 



Rocky Mountain, 356. 



Rusty, 344. 



Salt Marsh, 349 



Salton Sink, 358. 



Samuel's, 348. 



San Clemente, 353. 



San Diego, 351. 



Santa Barbara Island, 353. 



Santa Cruz, 351. 



Sooty, 344. 



Suisun, 349. 



Swamp, 365. 



Yakutat, 343. 

 Sonora Redwing, 116. 

 Sonora Yellow Warbler, 460. 

 Sooty Fox Sparrow, 369. 



Grouse, 1589. 



Shearwater, 2001. 



Song Sparrow, 344. 

 Sora, 1540. 

 Sora Rail, 1540. 

 South American Skua, 1353. 

 Southern Bald Eagle, 171 1. 



Savanna Sparrow, 256. 



Sandhill Crane, 1526. 



Skua, 1353. 



Violet-green Cormorant, 1956. 



White-headed Woodpecker, 

 1004. 



Wren-Tit, 823. 

 South-southerly, 1822. 

 Sparrow, Alameda Song, 349. 



Alberta Fox, 367. 



Aleutian Savanna, 246. 



Artemisia, 281. 



Belding's Marsh, 256. 



Bell's, 277. 



Black-chinned, 309. 



Brewer's, 312. 



Bryant's Marsh, 254. 



California Sage, 282. 



Sparrow, Crown, 331. 

 Desert, 273. 

 Desert Savanna, 248. 

 Domestic, 223. 

 Dwarf Savanna, 245. 

 Eastern Fox, 365. 

 Eastern Savanna, 247. 

 English, 223. 

 Forbush's, 360. 

 Fox, 365. 

 Fox-colored, 365. 

 Gambel's, 326. 

 Golden-crowned, 317. 

 Gray Savannah, 247. 

 Harris's, 315. 

 Heermann's Song, 354. 

 House, 223. 



Intermediate Crowned, 326. 

 Kadiak Fox, 367. 

 Large-billed Marsh, 259. 

 Larger Savanna, 246. 

 Lincoln's, 359. 

 Lincoln's Song, 359. 

 Mailliard's Song, 355. 

 Marin Song, 348. 

 Mendocino Song, 347. 

 Merrill's Song, 356. 

 Modesto Song, 355. 

 Modoc Song, 356. 

 Mono Fox, 379. 

 Nevada Sage, 281. 

 Nevada Savanna, 248. 

 Nelson's, 266. 

 Nelson's Sharp-tailed, 266. 

 Nuttall's, 331. 

 Oregon Song, 347. 

 Oregon Vesper, 245. 

 Pacific Vesper, 245. 

 Pale Savanna, 248. 

 Rocky Mountain Song, 356. 

 Rufous-crowned, 268. 

 Rusty Song, 344. 

 Sage, 281. 



Salt Marsh Song, 349. 

 Salton Sink Song, 358. 

 Samuel's Song, 348. 

 San Clemente Song, 353. 

 San Diego Marsh, 256. 

 San Diego Song, 351. 

 Sandwich, 246. 

 San Lucas, 260. 



Santa Barbara Island Song, 353. 

 Santa Cruz Song, 351. 

 Shumagin Fox, 367. 

 Slate-colored Fox, 375. 

 Sooty Fox, 369. 

 Sooty Song, 344. 

 Southern Savanna, 256. 

 Stephens's Fox, 384. 

 Street, 223. 



Sparrow, Suisun Song, 349. 



Swamp, 365. 



Swamp Song, 363. 



Thick-billed Fox, 373. 



Townsend's Fox, 363. 



Valdez Fox, 36S. 



Warner Mountains Fox, 378. 



Western Chipping, 302. 



Western Grasshopper, 263. 



Western Lark, 234. 



Western Savanna, 247. 



Western Tree, 300. 



Western Vesper, 241. 



White-crowned, 319, 331. 



White Mountains Fox, 379. 



White-throated, 335. 



Yakutat Fox, 368. 



Yakutat Song, 343. 



Yolla Bolly Fox, 378. 



Yosemite Fox, 379. 

 Sparrow Hawk, 1636. 

 Sparrow Hawk, Desert, 1636. 

 Spat, 1840. 

 Spatter Duck, 1840. 

 Spatterer, 1840. 

 Spatula clypeata, lyji. 

 Speckle-belly, 1853. 

 Speckled Brant, 1853. 

 Speotyto cunicularia hypog&a, 1120. 

 Spike-billed Curlew, 1258. 

 Spike-tail, 1784. 

 Spine-tail, 1840. 



Sphyrapicus ruber notkensis, ion. 

 ruber, 1012. 

 thyroideus, 1016. 

 varius nuchalis, IOoS. 

 Spinus pinus, 181. 

 Spizella arborea ochracea, 300. 



atrogularis, 309. 



breweri, 312. 

 * monticola ochracea, 300. 



passerina arizonce, 302. 

 Sponge Hummer, 954. 

 Spoon-bill Duck, 1778. 

 Spoon-bill, Roseate, 1932. 

 Spoon-billed Butter-ball, 1840. 

 Spotted Owl, 1090. 

 Spotted Sandpiper, 1273. 

 Sprat Loon, 2036. 

 Sprig, 17S4. 

 Sprig-tail, 1784. 

 Spurred Towhee, 390, 392. 

 Squatarola squatarola, 1290. 

 Squaw Duck, 183 1, 1835. 

 Stake-driver, 1916. 

 Steganopus tricolor, 1184. 

 Stelgidopleryx serripennis, 529. 

 Steller's Jay, 65. 

 Stellula calliope, 915. 

 Stephens's Fox Sparrow. ; s 4 



2Ii: 



