songs of caged birds, 32, 35;
the wing-song, 39-44;
individual variation in musical ability, 44-46;
acquired by imitation, 67, 68.

Bittern, least (_Ardetta exilis_), eating her eggs, 111.

Blackbird, crow, or grackle (_Quiscalus quiscula_ subsp.),
catching a fish, 176;
enmity with robins, 263, 264.

Blackbird, English, song of, 45, 227.

Blackbird, red-winged. _See_ Red-shouldered starling.

Black-knot, 27.

Bluebird (_Sialia sialis_), hearing the, 29.

Bobolink (_Dolichonyx oryzivorus_),
its song in the home meadows, 36;
variation in song, 69;
with defective song, 116.

Body, the, intelligence of, 128.

Bolles, Frank, 18.

Bostock, Frank C., his _The Training of Wild Animals_, 239-242.

Brewster, William, 22.

Buds, formation of, 50, 51.

Bumblebee, hibernation of, 49.

Burmeister, quoted on bees, 200.

Calf,
a wild, 214;
a yearling and its muzzle, 237.

Canary-bird, 159;
an incredible story of a, 177, 178.

Carlisle, Bishop of, 148.

Cats, 66, 67, 73;
fear of dogs, 75;
talking with the ears, 94, 95;
playing with mice, 100;
watching a mouse-hole, 186, 187;
human qualities of, 225, 226.

Cat tribe, their method of hunting, 183, 184.

Cedar-bird (_Ampelis cedrorum_),
notes of, 46;
nest-building of, 112;
and strings, 247, 248;
no song impulse in, 257.

Chapman, Frank M., his story of a least bittern, 111.

Chewink, or towhee (_Pipilo erythrophthalmus_),
the "Hermit's" story, 93.

Chickadee (_Parus atricapillus_),
flight of a young, 70;
tameness of, 205.

Chipmunk, 159.

Coon. _See_ Raccoon.

Cow, the, ignorance of, 123, 124, 187, 221.

Cowbird (_Molothrus ater_), 79, 80, 156, 157;
an incredible statement regarding, 178, 179, 220.

Coyote, or prairie wolf, 82, 86, 189.

Crab, hermit, 155.

Crabs, defensive instinct in, 169, 170.

Crossbills (_Loxia_ sp.), feeding on young peaches, 261.

Crow, American (_Corvus brachyrhynchos_),
winter quarters of, 50;
the "Hermit's" story of a crow, 93;
nature of his intelligence, 136, 137;
notes of, 188, 268;
story of a court of justice, 198, 199;
maltreating a tame crow, 199;
cunning of, 204;
a misinterpreted incident, 233, 234;
feeding, 265, 266;
suspiciousness of, 266;
flocking of, 266, 267;
meaning of calls of, 268;