Part 16

Hummingbird, Anna's, 27.

Hummingbirds, 25, 103.

Hyoid bones, 100-103.

Jay, blue, hoarding habit, 53, 60.

Kinglets, 5.

Lightning rods attracting woodpeckers, 18.

Logcock. See Woodpecker, pileated.

Maple, rock and red, sugar made from, 36.

Maize, eaten by English sparrows, 62, 65.

Mandibles of woodpeckers, 13, 101.

Martin, sand, 20.

Mice, hoarding habit, 60.

Migration, dependent upon food supply, 63.

Mountain-ash trees, sought by woodpeckers, 38.

Nesting of woodpeckers, 20-23.

Nests, in unusual places, 20.

North America, ornithologically defined, 114.

Nuthatches, 5, 21, 30, 81.

Oaks, used by Californian woodpecker for storing nuts, 48, 49.

Oranges, eaten by woodpeckers, 65, 66.

Owls, 15, 21, 80.

Pangolin, as an ant-eater, 104.

Parrot, 13, 82.

Parroquet, Carolina, 5.

Pigeon, domestic, 27.

Pines, acorns stored in, 49.

"Ploughshare," anchylosed vertebræ of tail, 86.

Ravens, 74.