Shrike, Migrant, 563-564. 
Northern, 559-560. 
White-rumped, 563, 755. 
Winter, 559. 
Shuffler, 93, 94. 
Sialia sialis, 727-729. 
wilsonii, 727. 
Sickle-bill, 203. 
Sickle-billed Curlew, 203-204. 
Siskin, 478. 
American, 478. 
Pine, 478. 
Sitta canadensis, 688-692. 
carolinensis, 683-687. 
melanocephala, 683. 
pusilla, 755-756. 
stulta, 688. 
varia, 688. 
Sittide, 683. 
Siurus motacilla, 632. 
nevius, 629. 
Skunk-head Blackbird, 430. 
Skunk-head Coot, 107. 
Skunk-top, 107. 
Slate-colored Junco, 513. 
Slate-colored Mockingbird, 658. 
Slate-colored Snowbird, 513. 
Small-billed Water-thrush, 629-631. 
Small Gray Goose, 119. 
Small Green-crested Flycatcher, 403. 
Smith’s Longspur, 751. 
Snake Bird, 65, 739. 
Snake Hawk, 259. 
Snake-skin Bird, 396. 
Snipe, American, 177. 
Common, 177. 
English, 177. 
Grass, 182-183. 
Grey, 179. 
Jack, 182. 
Red-breasted, 179-180. 
Robin, 181. 
Rock, 744. 
Stone, 191. 
Surf, 189. 
Western Red-breasted, 744. 
White, 189. 
Wilson’s, 177-179. 
Winter, 744. 
Wood, 172. 
Snipe, Key to species, 171. 
Snowbird, 485, 513. 
Snowbird, Black, 513. 
Blue, 513. 
Slate-colored, 513. 
White, 485. 
Snow Bunting, 485-486. 
Snowflake, 485. 
Snow Goose, 111. 
Snow Grouse, 228. 
Snowy Egret, 141. 
Snowy Heron, 127, 141. 
Snowy Owl, 331-333. 
Solitary Sandpiper, 193-195. 
Solitary Thrush, 718. 
Solitary Vireo, 573. 
INDEX. 
Solon Goose, 65. 
Soland Goose, 65. 
Somateria dresseri, 103-104. 
- mollissima, 103. 
spectabilis, 105-106. 
Song Sparrow, 517-518. 
Swamp, 522. 
Lincoln’s, 521. 
Song Thrush, 708. 
Song Wren, 670. 
Sooty Tern, 739. 
Sora Rail, 155-157. 
Sou’-southerly, 102. 
Southern Chickadee, 697. 
Southern Tanager, 754. 
Southern Water-thrush, 632. 
Sparrow, Bush, 511. 
Canada, 505. 
Chipping, 506-510. 
Clay-colored, 510-511. 
English, 480-485. 
European House, 480. 
Field, 491, 511-512. 
Fox, 524-526. 
Fox-colored, 524. 
Grass, 488. 
Grasshopper, 492-493. 
Ground, 511, 517. 
Hair, 506. 
Harris’s, 500-503. 
Hedge, 517. 
Henslow’s, 494-497. 
House, 480. 
Lark, 498-500. 
Leconte’s, 497. 
Lincoln’s, 521-522. 
Nelson’s, 498. 
Savanna, 491-492. 
Song, 517-518. 
Swamp, 522-523. 
Tree, 505-506. 
Vesper, 488-491. 
White-crowned, 503-504. 
White-throated, 504-505. 
Winter, 505. 
Yellow-winged, 492. 
Sparrow Hawk, 263, 291-295. 
Sparrow Owl, 314, 319. 
Spatula clypeata, 85-86. 
Sparvius platypterus, 281. 
Speckled-belly, 116. 
Speckled Brant, 116. 
Speckled Canada Warbler, 649. 
Spectral Owl, 310. 
Speed of Birds, 23-25. 
Sphyrapicus varius, 353. 
Spike-bill, 190. 
Spike-tail, 86, 234. 
Spine-tail Duck, 108. 
Spinus tristis, 476. 
pinus, 478-479. 
Spirit Duck, 98, 101. 
Spiza americana, 537-539. 
cyanea, 536. 
Spizella agrestis, 511. 
domestica, 506. 
815 
