Part 15

Caterpillars, as food for woodpeckers, 10, 11, 29, 63.

Cecropia chrysalids, eaten by woodpeckers, 9.

Chestnuts, eaten by woodpeckers, 59.

Chickadee, 16, 21, 25, 30, 32, 74.

Chipmunks, hoarding food, 60.

Clape. See Flicker.

Creeper, brown, 5, 81, 87, 88.

Crossbills, eating salted food, 31.

Crow, hoarding habit, 60; 74.

Cuckoo, ground, 82.

Cuckoos, yoke-toed, 5, 82.

Drumming of yellow-bellied sapsucker, 16, 17.

Evolution, 109, 112.

Feeding young, how the flicker does it, 24, 25.

Fence-posts used by woodpeckers, 48, 56, 58.

Finch, purple, 39.

Finches, 74.

Fish-spears, 12, 13.

Flicker, 6, 7, 15, 18, 20, 23-26, 73, 74, 82, 88, 89, 95, 97-99, 101, 103, 106, 125. brown, 126. cactus, 126. gilded, 126. Guadalupe Island, 127. northern, 126. northwestern, 126. red-shafted, 126.

Flycatching habits of woodpeckers, 7, 56, 106, 124.

Foot, of a four-toed woodpecker figured, 77. of a three-toed woodpecker figured, 80. discussed as a tool, 77-85.

Grasshoppers, as food for woodpeckers, 3, 56, 63.

Grosbeaks, pine, 39.

Grouse, ruffed, 14, 15.

Grouse, sharp-tailed, 15.

Hawk, sparrow, 21.

High-hole. See Flicker.

Hoarding habits, 62, 63.