624 



INDEX. 



Shearwater, 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. 

 Short-billed Gull, 34. 



Marsh Wren, 556. 

 Murrelet, 15. 

 Petrel, 66. 



-eared Owl, 258. 



-tailed Albatross, 51. 

 Hawk, 236. 



-winged Hylophilus, 479. 

 Shoveller, 97. 

 Shrike, Baird's, 468. 



California, 467. 



Loggerhead, 467. 



Northern, 466. 



Siberian, 466. 



White-rumped, 467. 

 Sialia, 572, 580. 



arctica, 580, 582. 



azurea, 581. 



mexicana, 581. 



sialis, 581. 



azurea, 581. 

 guatemalae, 581. 

 sialis, Sialia, 581. 

 Siberian Chickadee, 564. 



Gull, 29. 



Shrike, 466. 



Yellow Wagtail, 535. 

 sibiricus, Lanius borealis, 466. 

 sieberi, Aphelocoma, 358. 

 sieberii, Aphelocoma, 358. 



arizonae, Aphelocoma, 357. 



Pica, 358. 

 Sieber's Jay, 358. 

 Silvery-winged Leucosticte, 395. 

 Simorhynchus, 9, 12. 



cristatellus, 13. 



pusillus, 13. 



pygmreus, 13. 

 simplex, Muscicapa, 323. 

 sinaloensis, Dryobates scalaris, 285. 

 sinuata, Pyrrhuloxin, 444. 

 sinuatus, Corvus corax, 361. 

 Siskin, Pine, 400. 

 Sitta, 558, 559. 



canadensis, 559. 



carolinensis, 559. 

 aculeata, 559. 



pusilla, 560. 



pygmaoa, 560. 

 Sittace petzii, 270. 

 Sittinse, 558. 

 Skimmer, Black, 49. 

 Skimmer, Black-tailed, <L9. 

 Skua, 21. 



Antarctic, 21. 



Skua, Chilian, 21. 



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. 

 Small-billed Petrel, 65. 



-headed Warbler, 527. 

 Smew, 90. 



Smith's Longspur, 405. 

 smithsonianus,Larusargentatus,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. 



arizonae, Spizella, 419. 



Spizella, 418, 419. 

 Socorro Dove, 213. 



Elf Owl, 267. 



Ground Dove, 586. 



Parakeet, 270. 



Thrasher, 543. 



Towhee, 438. 



Warbler, 492. 



Wren, 553. 

 socorroensis, Columbigallina pas- 



serina, 586. 



soammerringii, Phasianus, 206. 

 Solitaire, Mazatlan, 573. 



Mexican, 573. 



Slate-colored, 573. 



Townscnd's, 572. 



Tres Marias, 573. 

 solitarius alticola, Vireo, 473. 



cassini, Vireo, 473. 



plumbeus, Vireo, 474. 



Totanus, 166. 



Vireo, 472, 473. 

 Solitary Sandpiper, 166. 



Vireo, Mountain, 473. 

 Somateria, 87, 108, 109. 



dresseri, 110. 



mollissima, 109, 110. 

 borealis, 109. 



spectabilis, 110. 



v-nigra, 110. 

 Song-Sparrow, 431. 



Aleutian, 432. 



Desert, 432. 



Heermann's, 431. 



Mexican, 432. 



Mountain, 431. 



Rusty, 432. 

 Song-Sparrow, Samuels's, 431. 



Sooty, 432. 

 Sonoran Red-wing, 370. 



sonoriensis, Agelaius phoeniceus, 



370. 

 Sooty Albatross, 53. 



Grouse, 196. 



Guillemot, 17. 



Shearwater, 61. 



Song Sparrow, 432. 



Tern, 45. 

 Sora, 139. 



sordida (?) Cyanomyia, 309. 

 South American Bittern, 127. 



Goshawk, 240. 

 Southern Hairy Woodpecker, 282. 



Marsh Wren, 556. 

 Sparrow, Aleutian Song-, 432. 



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. 



Bryant's Marsh, 409. 



Cassin's, 428. 



Chipping, 418. 



Clay-colored, 421. 



Cordova, 435. 



Desert Song-, 432. 



Dusky Seaside, 413. 



European House, 401. 

 Tree, 402. 



Ferrari-Perez's, 426. 



Field, 420. 



Five-striped, 426. 



Fox, 434. 



Gambel's, 416. 



Golden-crowned, 416. 



Grasshopper, 411. 



Guatemalan Chipping, 419. 



Harris's, 415. 



Hartlaub's, 426. 



Heermann's Song-, 431. 



Henslow's, 412. 



Intermediate, 416. 



Ipswich, 407. 



Large-billed, 410. 



Lark, 414. 



Le Conte's, 412. 



Lincoln's, 433. 



Mexican, 428. 

 Song-, 432. 



Mountain Song-, 431. 



Nelson's, 413. 



Oaxaca, 430. 



Pine-woods, 427. 



Rock, 429. 



Rufous-crowned, 429. 

 -winged, 430. 



Rusty Song-, 432. 



Sage, 427. 



Samuels's Song-, 431. 



Sandwich, 408. 



Savanna, 408. 



Seaside, 413. 



Sharp-tailed, 413. 



Slate-colored, 434. 



Song-, 431. 



Sooty Song-, 432. 



St. Lucas, 410. 



Striped-crowned, 435. 



