646 
Sharp-tailed Sandpiper, 155. 
Sparrow, 413. 
Acadian, 602. 
Shearwater, Allied, 61. 
Audubon’s, 60. 
Black-tailed, £8. 
Black-vented, 60. 
Christmas Island, 62. 
Cinereous, 59. 
Cory’s, 59. 
Dark-bodied, 61. 
Dusky, 61. 
Elegant, 61. 
Flesh-footed, 62. 
Greater, 59. 
Green-billed, 62. 
Manx, 60. 
Pelzeln’s, 60. 
Pink-footed, 59. 
Slender-billed, 62. 
Sooty, 61. 
Streaked, 62. 
Wedge-tailed, 62. 
Ehbort-billed Gull, 34. 
Marsh Wren, 556. 
Murrelet, 15. 
Petrel, 66. 
-eared Owl, 258. 
-tailed Albatross, 51. 
awk, 236. 
-winged Hylophilus, 479. 
Shoveller, 97. 
Shrike, Baird’s, 468. 
California, 467. 
Loggerhead, 467. 
Northern, 466, 
Siberian, 466. 
White-rumped, 467. 
shufeldti, Junco hyemalis, 603. 
Shufeldt’s Junco, 603. 
Sialia, 572, 580. 
arctica, 580, 582. 
azurea, 581. 
mexicana, 581, 612. 
anabele, 613. 
bairdi, 612. 
occidentalis, 612. 
sialis, 581. 
azurea, 581. 
guatemale, 581. 
sialis, Sialia, 581. 
Siberian Gull, 29. 
Shrike, 466. 
Yellow Wagtail, 525. 
sibiricus, Lanius borealis, 466. 
sieberi, Aphelocoma, 358, 
sieberii, Aphelocoma, 358, 
arizon, Aphelocoma, 357. 
Pica, 358. 
Sicher’s Jay, 358. 
Silver Pheasant, 590. 
Silvery-winged Leucosticte, 395. 
Simornynchus, 9, 12. 
cristatellus, 13. 
pusillus, 13. « 
pygmeeus, 13. 
simpiex, Muscicapa, 323. 
sinaloensis, Dryobates scalaris, 285. 
sinuata, Pyrrhuloxia, 444, 
sinuatus, Corvus corax, 361. 
Siskin, Pine, 400. — 
Sitta, 558, 559. 
INDEX. 
Sitta canadensis, 559. 
carolinensis, 559. 
aculeata, 559. 
atkinsi, 610. 
pusilla, 560. 
pygmea, 560. 
leuconucha, 610. 
Sittace petzii, 270. 
Sitting, 558. 
Skimmer, Black, 49. 
Black-tailed, 49. 
Skua, 21. 
Antarctic, 21. 
Chilian, 21. 
skua, Megalestris, 21. 
Skylark, 347. 
Kamtschatkan, 347. 
Slate-colored Junco, 422, 
Solitaire, 573. 
Sparrow, 434. 
Slaty-backed Gull, 29. 
Slender-billed Fulmar, 58, 
Grackle, 381. 
Noddy, 48. 
Nuthatch, 559. 
Shearwater, 62. 
Cmall-billed Petrel, 65. 
-headed Warbler, 527. 
Smew, 90. 
Smith’s Longspur, 405. 
smithsonianus, Larus argentatus, 
29. 
Snipe, European, 150. 
Semipalmated, 151. 
Wilson’s, 150. 
Snowflake, 402. 
McKay’s, 403. 
Pribylof, 403. 
Snow Goose, Greater, 115. 
Lesser, 115. 
Ross’s, 115, 
Snowy Heron, 130. 
Owl, 264. 
Plover, 178. 
sociabilis, Rostrhamus, 226. 
socialis arizone, Spizella, 419. 
Spizella, 418, 419. 
Socorro Dove, 213, 
Elf Owl, 267. 
Ground Dove, 591. 
Parakeet, 270. 
Petrel, 584, 
Thrasher, 543, 
Towhee, 438. 
Warbler, 492. 
Wren, 553. 
socorroensis, Columbigallina pas- 
serina, 586. 
Oceanodroma, 534. 
semmerringii, Phasianus, 206. 
Solitaire, Mazatlan, 573. 
Mexican, 573. 
Slate-colored, 573. 
Townsend’s, 572. 
Tres Marias, 573. 
solitarius alticola, Vireo, 473. 
eassini, Vireo, 473. 
plumbeus, Vireo, 474. 
Totanus, 166. 
Vireo, 472, 473. 
Solitary Sandpiper, 166. 
Western, 587. 
Solitary Vireo, Mountain, 473. 
St. Lucas, 607. 
Somateria, 87, 108, 109. 
dresseri, 110. 
mollissima, 109, 110. 
borealis, 109. 
spectabilis, 110, 
v-nigra, 110. 
Song-Sparrow, 431. 
Aleutian, 432, 604. 
Brown’s, 604. 
Desert, 432. 
Heermann’s, 431. 
Kadiak, 604. 
Mexican, 432. 
Mountain, 431. 
Rusty, 432. 
Samuels’s, 431. 
San Clemente, 604. 
Santa Barbara, 604. 
Sooty, 432. 
sonorana, Dendroica zstiva, 608. 
Sonora Yellow Warbler, 608. 
Sonoran Horned Lark, 599. 
Red-wing, 370. 
Sooty Albatross, 53. 
Grouse, 196. 
Guillemot, 17. 
Shearwater, 61. 
Song Sparrow, 432, 
Tern, 45. 
Sora, 139. 
sordida (?) Cyanomyia, 309. 
Helminthophila celata, 607. 
South American Bittern, 127. 
Goshawk, 240. 
Southern Hairy Woodpecker, 282, 
Marsh Wren, 556. 
Sparrow, Acadian Sharp-tailed,602. 
Aleutian Song-, 432, 604. 
Bachman’s, 428. 
Baird’s, 410. 
Belding’s Marsh, 409. 
Bell’s, 426. 
Black-chinned, 421. 
-throated, 425. 
Botteri’s, 428, 
Boucard’s, 429, 
Brewer’s, 421. 
Brown’s Song-, 604. 
Bryant’s Marsh, 409. 
Cassin’s, 428. 
Chipping, 418. 
Clay-colored, 421. 
Cordova, 435. 
Desert Song-, 432. 
Dusky Seagide, 413. 
es House, 401. 
Tree, 402. 
Ferrari Perez’s, 426. 
Field, 420. 
Five-striped, 426. 
Forbush’s, 605. 
Fox, 434, 
Gambel’s, 416. 
Goulden-crowned, 416, 
Grasshopper, 411. 
Gray Sage-, 604. 
Guatemalan Chipping, 419. 
Harris’s, 415. 
Hartlaub’s, 426, 
Heermann’s Song-, 431. 
