INDEX. 



281 



Species, def., 127. 

 Specific effect, def., 146. 

 Spoonbill, roseate, 49, 105. 

 Squirrel, red, 199. 



flying, 199. 



"Stake-driver," see Bittern. 

 Steering flight, 90. 

 Stilt, 253. 



Stopping flight, 91. 

 Straits of Mackinac, 168. 

 Strings, used by birds, 238. 

 f Sub-species, def., 132. 

 Sunbirds, 103. 

 Swallow, 79, 89, 99, 100, 139, 140, 253. 



bank, 203. 



barn, 190. 



blue-backed, 203, 254. 



cliff, see Eaves swallow. 



eaves, 116, 190, 201-212, 232, 254. 



rough-winged, 203. 



tree, see Blue-backed. 



violet-green, 190. 

 Swan, 57, 96. 



black, 60. 

 Swift, 79, 89, 93, 99, 100. 



chimney, 90, 190. 



Vaux's, 190. 

 Swimming, 71-74. 

 Syndactylous, def., 97. 



TANAGER, scarlet, 150, 254, 256. 



Tarso-metatarsus, 69. 



Tarsus, 69. 



Tennyson, Alfred, quoted, 13. 



Terete, def., 98. 



Tern, 29, 57, 59, 89, 90, 93, 94, 176, 177. 



Forster's, 59. 



roseate, 254. 



Wilson's or common, 101, 254. 

 Tertiaries, def., 78. 

 Thayer, Abbott H., quoted, 153, 154. 

 Thoreau, Henry D., quoted, 68, 174 255 



256. 



Thrasher, brown, 255. 

 Thrush, hermit, 249-251. 

 Tibio-tarsus, def., 69. 

 "Tick-eater," see Ani. 

 Tillandsia, 48. 

 Totipalmate, 50, 95, 96. 

 " Towering," 89. 

 Towhee, 113, 232. 



Oregon, 190. 



white-eyed, 113. 



Tricks of flight, 91. 

 Turkey-buzzard, 88. 



UNGA ISLAND (Alaska), 14. 

 Unsymmetrical coloration, 106, 107. 



VARIATION, geographical, 132, 133. 

 Vireo, red-eyed, 113, 187, 227, 258. 



white-eyed, 113, 258. 



yellow-throated, 256, 258. 



WARBLER, 116, 150, 184. 

 Audubon's, 191. 



blue yellow-backed, 162. 



chestnut-sided, 254. 



hermit, 191. 



pine, 162. 



redstart, 254. 



yellow, 140. 



yellow-rum ped, 164. 

 Water ousel, 71, 129. 

 " Water turkey," see Anhinga. 

 " Water witch," see Grebe. 

 " Water wren," see Water ousel. 

 Webbed feet, 71, 73. 

 Whip-poor-will, 151. 

 Whittier, John G., quoted, 18, 23, 42. 

 Wild cat, 198. 

 Willet, 253. 



Willow, food of grouse, 195. 

 Wilson, Alexander, quoted, 104. 

 Wings, requirements of, 75. 



problems of construction, 76. 



shape, 79. 

 Winking membrane, 114, 

 Wishbones, 70. 

 Wood pewee, 184, 185, 187. 

 Woodcock, 100, 101, 151, 266. 

 Woodpecker, 93, 96, 100, 104, 178, 200, 254. 



downy, 131, 133, 243. 



hairy, 133. 



ivory -billed, 49. 



Lewis's, 191. 



pileated, 190. 



red-headed, 232. 



three-toed, 157, 161. See also Sapsucker. 

 Wren, marsh, 7. 



rock, 232. 



ZOOGEOGRAPHICAL divisions, 263. 

 Zoogeography, 155, 156. 

 Zygodactyl, def., 96. 



