Cities, relation of growth of, to poultry culture, 278 Classes of domestic birds, 6 Clover, 140 Clucking of hen, 33, 93 Cochin, Buff, illustrated, 50; Black, used in making Plymouth Rock, 57; Partridge, judging, 296 Cochin Bantams, 69; illustrated, 69 Cock, use of term, 34 Cockfighting, prohibition of, 5 Cockerel, 35 Cold storage, 112, 285 Colony houses, illustrated, 101, 103, 104, 106 Colony system of poultry keeping, 101 Color, in feathers, 10; of wild ancestor of domestic fowl, 27; of wild ancestor of domestic pigeon, 247; consideration of, in judging, 294 Comb, of fowl, 33, 117; of guinea, 200 Commerce, relations of, to aviculture, 308 Common Pheasant, 214 Comparison judging, 299 Confinement, effect of, on egg production, 72, 74 Cooling dressed poultry, 285; illustrated, 287 Coop, made of dry-goods box, illustrated, 75; for hens and chicks, 97; illustrated, 97, 98, 106; for turkey hen and brood, illustrated, 197; for pheasants, illustrated, 218, 219 Corn, cracked, 78, 98, 103, 116, 140, 175; feeding, on cob, 89; soaking whole, 89; for sitting hens, 95; stale, 220 Corn meal for chicks, 78, 89, 97 Cornfield, poultry in, 106; illustrated, 122 Cracker crumbs for chicks, 98 Creameries as egg-collecting depots, 280 Creamy tint in white feathers, cause of, 11 Crest, occurrence of, in fowls, 10; consideration of, in judging, 295 Crested White Duck, 133 Crop, function of, 16; size of, in duck, 140; peculiarity of, in ostrich, 232 Croppers, 250 Crossbred, defined, 29 Crow of cock, 33 Crower, colloquial use of term, 35 Cuckoo, laying habit of, 1; mating habits of, 3; fowls, 43 Curl in tail of drake, 127 Cuttle bone for canaries, 273 Cygnet, 224 Darknecked Pheasant, 214 Decoration, feathers used for, 32 Decorative plumage, 10 Deer's hair for canaries' nests, 274 Diet of birds, 15 Disqualifications for exhibitions, 298 Domestication, adaptability of species to, 7 Dominique, 43, 55, 57; illustrated, 43 Dorking, 44, 55; illustrated, 44 Dove, origin and use of term, 240 Dovecots, great number of, in England in medieval times, 252 Down, defined, 8; replaced by feathers, 11; sometimes a disqualification, 299 Dragoon pigeon, 251; illustrated, 241 Drawing poultry, 289 Dressed poultry, 283; illustrated, 285 Dressed squabs, illustrated, 267 Driving turkeys to market, illustrated, 199, 280, 281 Droppings board, 75 Duck farms, illustrated, 146, 147, 149, 150 Dumb ducks, 127 Dust bath for fowls, 76 Dutch artists, paintings of poultry by, 48 Dutch races of fowls, 47 Dwarf fowls, 64 Eared Pheasants, 216 Earth, relation of age of, to evolution, 26 East India Duck, 133 Egg, description of, 16