INDEX. 
Carotid arteries, fused or aborted, 
194, 
Cassowary, after shaft on, 28 ; weap- 
ons of, 61; roosting humped, 155; 
peculiar molt of, 42. 
Catbird’s scolding endowments, 82. 
Caterpillar eaters, 153; cuckoo evis- 
cerating, 239. 
Cere, 222; feathered in parrots, 
220. 
Chameleon’s toe peculiarities, 164. 
Chat, yellow-breasted, flight antics 
of, 73. 
Chest muscles, 13; color and char- 
acter of, 172. 
Chewink (towhee), song position, 
80; feeds scratching, 152. 
Chickadees, hot nest, 101; habits, 
114, 234. 
Choice, of mates, origin of, 48 ; re- 
finements of, 49 ; of nest material, 
109. 
Clamatores, 229. 
Clasping, automatic, 156, 157; effect 
of, on middle toe, 166. 
Claws, on Archceopteryx, 6, 11 =O) 
modern birds, 11 ; hoactzin ecrawl- 
ing by, 11; modified for food tak- 
ing, 141; elongated, on cassowary, 
61; on jacana, 138; on larks (ill.), 
228; like human nails in ibises, 
218. 
Clutch, 188, 189. 
Cock nests, 111. 
Collies, kinship, 210. 
Color, and molt, 38; slow acquisi- 
tion of, 40 ; and food, climate, en- 
vironment, and vigor, 41, 49 ; sub- 
Stitution of, 46; loss of, for sake 
of perspective in Argus pheasant, 
48; and nest, 51; color calls, 53; 
younger than weapons, 64 ; of egg, 
116; of egg, in oviduct, LS on 
bird’s eggs only, 120; ground, of 
eggs, 120; of Eastern and Western | 
birds, 187. 
Columbus and bird routes, 182. 
Condor’s ruche of down, 26. 

253 
Connecting links: flamingo, 140; 
Apteryx, 138; jacana, 138; duck- 
bill, 1, 3, 135; waders, 141; owls, 
150; wren-tits, 152; cowbird and 
bobolink, 151 ; hoactzin, 197 ; Sand 
grouse, 204; bustard, 205; sea run- 
ners, 207 ; tropic bird, 207 ; herons 
and secretary bird, 208 ; collies, 
210. 
Cormorants, eggs of, rough, 118 ; re- 
gurgitating fish, 131 ; feeding hab- 
its, 140. 
Coues, E., on robin, 231. 
Counting, 188 et seq. 
Courlan, kinship of, 204. 
Courtship, and antics, 48; and song, 
77 et seq.; and ornament, 44-52. 
Cowbirds, odor of, not destructive, 
75; do not marry, 95; parasitic 
in nesting, 95, 189, ete.; bill and 
feeding, 189; baby call sparrow- 
like, 247. 
Cranes, beak of, 60 ; playing, 70 ; the 
group’s feeding habits, 141; kinship 
of, 205 ; identifying, 219. 
Crests, and spring molt, 38; as orna- 
ments, 45. 
Crop, peeling up in pigeons, 131 ; in- 
flated in a sandpiper, 71. 
Crows, flocking, 56 ; playing, 69; 
omnivorous, 151 ; crow form’s love 
of bright objects, 199 ; not musical, 
210; highest bird, 211. 
Cuckoos (European), mimicry of 
sparrow hawk (ill.), 66; migrat- 
ing before young, 183; parasitic, 
95 ; (American) cool nest of, 101 : 
(generally) peculiar eggs of, 118 ; 
paired toes and feeding habit, 147 : 
kinship of, 209 ; identifying, 226 ; 
eviscerating caterpillars, 239. 
Curassow, kinship of, 204; an old 
type, 211. s 
Darwin, Charles, on color, 21; on 
molt, 37, 38 ; on ornaments of Ar- 
gus pheasant, 48 ; on sex selection, 
49; on weapons, 60; on unmated 
