49 6 



Index 



Vertebrae (continued) 



function of, 196; Jabiru, neck 

 vertebra of, 72; Ostrich, 69, 71; 

 Ostrich-tail, 402 



pelvic, of American Flamingo, 76; 

 alligator (young), 76; Bald Eagle, 76 

 of shark, 68; of tail, 75 

 Vireo, 144; iris of eye of, 256 

 Vorticlla, 463, 464 



Vulture, colour in young Turkey, 317; 

 flight of, 328, 330, 331, 332; King, 

 head of, 272, 273; sense of sight in, 

 205; toes of, 377; Turkey, in flight, 

 331 



W 



Wading birds, number of eggs laid by, 

 438 



Wagtail, tail of, 413 



Walrus, brain of, 200 



Warbler, life-habits of Black-and-white, 

 366; Black-throated Green, 366; Mag- 

 nolia, 366; Myrtle, 364; Pine, 366; 

 Worm-eating, 163; Yellow Palm, 363 



Warbler-bush, wings of, 347 



Warblers, evolution of, 361-367 



Water-birds, number of eggs laid by, 

 436, 437, 438 



Wattles, of Bell-bird, 273; Condor, 271; 

 Wild Turkey, 273, 275; King Vulture, 

 272, 273 



Waxbill, African, abnormal number of 

 eggs laid by, 444 



Web of toes, of Flamingo, 388; Sea- 

 birds, 389; Semipalmated Sandpiper, 

 384 



Weight of birds, 285, 286; of Ptero- 

 dactyls, 285 



Whale, food of, 148; tail of, compared 

 with that of bird, 405 



Whydah-finch, tail of Paradise, 415, 416 



Windpipe, see Trachea 



Wing, bones of, 95; change of function 

 in, 337; compared with arm of man, 

 94; evolution of, 91-97, 319; feather 

 divisions of, 320; framework of, 91- 

 97; noise of, 345, 347; spurs of, 346, 

 347; strokes of Hummingbird, 82; 

 use of, in defence, 337 



Wing of, Albatross, 320, 321, 325, 332- 

 Great Auk, 339, 340; Racor-billed 

 Auk, 339,340; Cassowary, 321,337, 

 338; Young Catbird, 322; Condor, 

 324, 326, 332; Steamer Duck, 337; 

 Snowy Egret, 350; West African 

 Goatsucker, 359; Canada Goose, 346; 

 Young Canada Goose, 322; Spur- 

 winged Goose, 346, 347; Ruffed 

 Grouse,347; Herring Gull, 328; Young 

 Green Heron, 320, 323; Great White 

 Heron, 321; Sleeping Heron, 344; 

 Hummingbird, 320, 321,325; Mallard, 

 47; Murrelets, 339; Young Osprey, 



322, 351; Ostrich, 321,337,338,339; 

 Twelve-wired Bird of Paradise, 348; 

 Parrot, 322; Parrot Owl, 333; Pen- 

 guin, 321, 341, 342, 343; Pheasant, 



323, 324, 327; Screamer, 346; Black 

 Skimmers, 324; English Sparrow, 46; 

 Spoonbill, 350; Trumpeter Swan, 346; 

 Tern, 352; Bush Warbler, 347; Wood- 

 cock, 348, 349; Turkey Vulture, 331 



Wish-bone, see Clavicle 



Woodcock, bill of, 222; eyes of, 221, 256; 

 sense of sight in, 208; sense of touch 

 in, 219, 221, 222; wing-song of, 348 



Woodhewer, tail of, 410 



Woodpecker, tail of 410, 411, 412; 

 nest and eggs of Hairy, 445; char- 

 acter of egg-shell of, 460; colou of 

 eggs of, 444; function of saliva in, 

 118; tongue of, 122; bill of, 245; 

 crest of, 264; flight of, 329; feet of, 

 370 



Wren, Marsh, colour of eggs of, 446; 

 tail of, 411 



Wrist-bones of bird, 92; of man, 92 



X 



X-ray photograph of Pigeon, 63 

 Y 



Yellow-throat, life-habits of Maryland, 

 362 



Z 



Zygodactyl toes, 369, 370, 371, 372 



