Index 
Crane, trachea of, 170, 171 
Cranium, see Skull 
Creeper, Brown, protective coloration 
of, 303, 304; food of, 150; tail of, 
410, 411 
Crest of, California Partridge, 259; 
Cock-of-the-Rock, 270; Condor, 271; 
Crowned Crane, 264, 265; Crowned 
Pigeon, 260, 261; Banded Curassow, 
261; Demoiselle Crane, 265, 267; 
Domestic Cock, 274; Double-crested 
Pigeon, 270; Eared Pheasant, 268; 
Harpy Eagle, 262, 264; Hooded 
Merganser, 263; Hummingbirds, 267; 
India Peacock, 259; Java Peacock, 
258; Kingbird, 260; Ruby-crowned 
Kinglet, 260; King of Saxony Bird 
of Paradise, 269, 270; Laughing 
Thrush, 263; Leadbeater Cockatoo, 
260; Mandarin Duck, 263; Night 
Heron, 259; Plumed Partridge, 259; 
Six-shafted Bird of Paradise, 267; 
Snowy Egret, 260; Umbrella-bird, 
264, 266; Woodpeckers, 264 
Crests, use of, 258 
Crocodile, brain of, 200; gizzard of, 138; 
gullet of, 134; heart of, 181 
Crop, 127-134; of Caracara, 134; capa- 
city of, in Wood Pigeon, 130; ejection 
of food-pellets from, 132, 133; of 
English Sparrow, 129; extreme devel- 
opment of, in Pigeon, 130; in Hoatzin, 
130, 131; oil in Petrel’s, 131 
Crossbill, bill of, 245, 248, 249 
Cross-fertilization by birds, 144, 145 
Crow, brain of, compared with that of 
Hesperornis, 6; Fish Crow, stealing 
eggs of herons, 448, 449; foot of, 
356; method of feeding on shell-fish, 
153; pterylosis of nestling, 30 
D 
Darwin, evolutionary theory of, 12 
Decorations, use of, 322 
Deer, nostrils of, 204; spots in young, 
316, 317, tail of, 413 
Dermis, 21 
Dinosaur, relation to birds, 9; thigh- 
girdle of, 90; tracks of, 396, 307 
Distribution of birds, 361 
Dogfish, see Shark 
Donkey, foot of, 39, 395 
Dove, colour of eggs, 446; nest of 
Mourning, 439; position of eyes in, 
252, 253, 254 
Down, development of, 23; from head 
of young Bobolink, 26; magnified 
from young Song Sparrow, 27; 
models of development of, 24, 25; 
487 
of adult Crested Screamer, 29; 
Duck Hawk, 27. of 
Duck, colour of eggs of, 447; oddities 
of diet of, 160-163; eggs of, 447; 
food of, 147; crest of Mandarin, 
263; nest of Mallard, 447, 448; 
position of feet in, 382, 389, 390; 
Side-wheel, see Steamer Duck; bill 
of Shoveller, 233, 234; gradual loss 
of flight in Steamer, 337; tail-feathers 
of, 400; tail of Blue, 406; tail of 
Pintail, 415 
E 
Eagle, Bald, iris of eye of, 256; foot 
of Golden, 374, 376; foot of Harpy, 
375; Golden, 242; Harpy, 262, 264; 
Hyoid of, 114; nictitating membrane 
of, 214; sight of, 208 
Ear, canals of, 218; in owls, 216, 217; 
structure of, 217, 218 
Eclipse plumage, 48, 49 
Edible birds’ nest, see Swiftlet. 
Eggs, 
abnormal number laid by African 
Waxbill, 444; domestic Hen, 444; 
Flicker, 444 
of Apyornis, 461; alligator, 429; 
Anna Hummingbird, 443; Arche- 
opteryx, 13; butterflies, 428; Cali- 
fornia Partridge, 438; Cassowary, 
436, 453 
character of surface of, in Casso- 
wary, 460; Cormorant, 460; Duck, 
460; North and South African 
Ostriches, 460; Tinamou, 460; 
Mute and Whooping Swans, 460; 
Woodpeckers, 460 
of cod, 428 
coloration of eggs, 430; of Casso- 
wary, 453, 454; causes of, 458, 459; 
Doves, 446; Ducks, 447: English 
Cuckoo, 456, 458; Goose, 448; 
Grouse, 447; Herons, 448; Long- 
billed Marsh Wren, 446; Murres, 
456; Nighthawk, 454, 455; Ostrich, 
453, 454; Owls, 451; Parrots, 
445; Pelicans, 448; Sea-birds, 
455; Short-billed Marsh Wren, 446; 
Skimmer Black, 454, 455, 456, 459; 
Tern, 454, 456, 457; compared 
with stilt, 452; variability of, 456, 
457, 459; Woodpecker, 444 
comparative size of eggs of Hum- 
mingbird, 461 
of Emeu, devoured by Buzzard, 159; 
Fowl, 429, 436 
of frog, 428, 465; development of, 465, 
466, 467; for embryonic study, 462 
of Grebe, 432; Hairy Woodpecker, 445; 
