492 



Index 



189; cf. with reptiles, 193, 194; 

 of embryo chick, 480; energy of, in 

 Hummingbird, 83; impressions on 

 bones, 194; pectoral, 190; of skin 

 in Goose, 188; of skin in Penguin, 

 188; structure of, 193; of wing and 

 breast of Pigeon, 190; of wing in 

 Owl Parrot, 333 



N 



Neck, of Flamingo, 281; Heron, 281; 

 Loon, 277; Snake-bird, 282, 283; 

 Swan, 282 



Neck vertebrae, cf. with Giraffe, 73, 75; 

 cf. with man, 72; cf. with reptile, 

 73 



Nerves, action of, 198; cerebral, 202 



Nervous system, 196, 198; of Pigeon, 

 197; reflex, 197, 198 



Nest, of Mourning Dove, 439; Mallard 

 Duck, 447, 448; Laughing Gull, 437; 

 Great Blue Herons, 450; Humming- 

 birds, 448; Anna Hummingbird, 

 443; Ruby-throated Hummingbird, 

 449; Junco, 434; Kingfisher, 444; 

 Nighthawk, 455; Ostrich, 453, 454; 

 Burrowing Owl, 442; California Part- 

 ridge, 438; Black Skimmer, 454, 

 450, 4595 Tern, 453, 456, 457; Hairy 

 Woodpecker, 444, 445 



Nictitating membane, of alligator, 215; 

 Eagle, 214; human eye, 215; Brown 

 Thrasher, 213 



Nighthawk, colour of eggs of, 454, 455; 

 nest of, 455; number of eggs laid 

 by, 442; protective coloration in, 

 296, 301 



Nostrils, of bird, 204; of daer, 204 



Notochord, of Amphioxus, 66; of 

 Boltenia, 67 



Nuthatch, bill of, 245; foot of, 359 



Nutrition, 116-141 



O 



Odour in birds, 287 



Oil-gland, 286, 287 



Oology, 451 



Orbit, of Apteryx, 255; of Owl, 255 



Oriole, foot of, 360 



Osprey, food of, 155, 156; foot of, 347; 

 method of fishing of, 154; use of 

 wing in young, 322; wing of, 351 



Osteology, 62 



Ostrich, body-feathers of, 288; cause of 

 downiness in feather, 35; colour of 

 eggs, 453, 454; compared with Moa, 

 13; cross-section of wing-bone, 175; 

 eggs of, 436, 453; embryo (40-day), 



479; eyelashes of, 257; leg of, 100: 

 length of intestines, 140; neck and 

 vertebrae of, 69, 71; nest of, 453, 454; 

 number of eggs laid by, 433; pro- 

 tective position of, 306, 307; skele- 

 ton of leg, 99; specific difference in 

 eggs, 460; sternum of, 81; tail of, 

 402; toes of, 358, 394, 395, 396: 

 wing of, 321, 337, 338, 339 



Owl, aggressive coloration of Snowy, 

 309, 313; cause of downiness in 

 feathers, 35; colour phases of Screech, 

 314; eggs of Screech, 441; food of 

 Barn, 158; food and feeding habits 

 of Burrowing, 162; food of Elf, 158; 

 food of Strenuous, 158; food-pel- 

 lets ejected by, 132, 133; foot of 

 Burrowing, 373; foot of Snowy, 375; 

 iris of eye of, 256; nest of Burrow- 

 ing, 442; orbit cf Barred, 255; posi- 

 tion of eyes in Barn, 252, 253, 254; 

 sight of Barred, 211 



Owls, bills of, 242; colour of eggs of, 

 451; foot of, 373, 374; number of 

 eggs laid by, 440 



Ovary of fowl, 464 



Ovenbird, 365, 366 



Oyster-catcher, bill of, 238, 240; food 

 of, 153 



Palate, 111 



Paradise, King of Saxony Bird of, 276; 



269; Six-shafted Bird of, 267, 269, 



Superb Bird of, 277; Twelve-wired 



Bird of, 348 



Parallelism, in feeding habits, 163, 164 

 Paramecium, 463; keels, 83, 84 

 Parrakeet, tail of Grass, 408 

 Parrot, bill of, 242; colour of eggs of, 445; 



flight of Owl, 333; food of Kea, 161; 



foot of, 372; number of eggs laid by, 



441; use of wing in, 322 

 Partridge, California, crest of, 259; nest 



and eggs of, 438; Plumed, crest of, 



259; Scaled, feathers of, 289, 290 

 Passeres, foot of, 358, 359 

 Peacock, feather of, 20; India, crest of, 



259; Java, crest of, 258; ribs of, 78; 



spurs of, 382, 383; tail of, 422, 423; 



train of, 422, 423 

 Peafowl, tail of, 402 

 Pectoral girdle, see Shoulder-girdle. 

 Pelican, bill of, 228, 229, 330; colour 



of eggs of, 448; downy stage of, 54; 



foot of, 355; full-grown, 59; glottis 



of, 166; half-grown, 57; method of 



fishing of, 152; nestling of Brown, 21; 



newly hatched, 30; tail of, 408, 409; 



tongue of, 120, 121 



