INDEX 
431 
PAGE 
Spinus t. salicamans 390 
t. trislis 389 
Spiza americana 383 
Spizella arborea 399 
a. arborea 399 
a. ochracea 399 
breweri 401 
b. breweri 401 
b. taverneri 401 
pallida 400 
passerina 400 
p. arizonae . . , 400 
p. passerina 400 
pusilla 401 
Spoon-bill. See Shoveller 93 
Spoon-bills, gen. description 67 
Sprig. See Duck, Pintail 90 
Springtail. See Duck, Pintail 90 
Square-tail. See Chicken, Prairie 160 
Squatarola squatarola 184 
Squawk. See Heron, Black-crowned 
Night 64 
Stake-driver. See Bittern, American . . 65 
Starling, American 368 
Asiatic 342 
Chinese. See Starling, Asiatic 342 
Common 341 
Japanese. See Starling, 
Asiatic 342 
Starlings, gen. description 341 
Slcganopm tricolor 213 
Stelgidopterys ruticollis 300 
Sicllula calliope 275 
Stercorariidae , gen. description 215 
Stercorarius longicaudus 217 
parasiticus 216 
pomaHnus 216 
Sterna antiUarum 238 
dougalli 237 
forsteri 235 
fuscata 238 
hirundo 236 
paradisaea 237 
Slerninae 234 
Stilt, Black- necked, figured 210 
Stilts, gen. description 210 
Strigidae 256 
Slrigiform.es 255 
Strix ocddenlalis 262 
o. caurina 262 
varia 262 
v . varia 262 
Study of birds, methods of approach. 14, 15 
Sturnella magna 369 
neglecta 369 
Sturnidae . 341 
Sturnus vulgaris 341 
Subspecies due to geographical causes. 5 
Sula bassana 54 
Sulidae 54 
Surf-bird 184 
Surnia ulula. 260 
PAGE 
Swallow, American Rough-winged 300 
Bank 300 
Bam 301 
Chimney. See Swift, Chim- 
ney 271 
Cliff 301 
Northern. 301 
Eve. See Swallow, Cliff 301 
Mud. See Swallow, Cliff 301 
Tree 299 
Violet-green 299 
Northern 299 
White-bellied. See Swallow, 
Tree 301 
Swallows, gen. description 29S 
Swan, Trumpeter 76, 77 
Whistling 74-76 
Swans, gen. description 73 
Swift, Black. 270 
Northern 270 
Black Cloud. See Swift, Black. 270 
Chimney 271 
Vaux's 272 
White- throated 272 
Swifts, gen. description. 269 
Spine-tailed 270 
Typical 272 
Swimmers, fully webbed, gen. descrip- 
tion 51 
Greater Tube-nosed, gen. 
description 45 
Lesser Tube-nosed, gen. 
description. 46 
Long-winged, gen. descrip- 
tion 214 
Sylviidae 333 
Synthliboramphus antiquus 246 
Tachycineta ihalassima 299 
t. lepida 299 
Tanager, Crimson-headed. See Tan- 
ager, Western 378 
Louisiana. See Tanager, 
Western 378 
Scarlet 378 
Summer 379 
Western 378 
Tanagers, gen. description 377 
Teal, Blue-winged 92 
Cinnamon 92 
European 91 
Green- winged 91 
Teeter. See Sandpiper, Spotted 192 
Tell-tale. See Yellow-legs 196 
Telmatodytes palustris 321 
p. dissaeptus 321 
p. laingi 321 
p, paludicola 321 
p. palustris 321 
p. plesius 321 
