The nest of a gray or red squirrel is a wonderful piece of architecture. It is usually built in the crotch of some large branch, near or directly against the main trunk of the tree. The spherical-shaped exterior is a mass of interwoven twigs, so carefully placed as to afford ample protection against rain or snow; leaves and grasses are stuffed inside, while the little bed where the squirrel nestles and takes its nap is of the softest and driest moss. In this pretty snuggery five or six little squirrels are born early in the warm weather. The mother is very watchful and very affectionate. If any wicked boys disturb her, or a natural enemy, some beast or bird of prey, comes near, she takes her little ones in her mouth, like a cat with its kittens, and hastily carries them to a more secure hiding-place. The parent squirrels never go away from the nest, but play and jump about on the branches near by, until the little ones are strong enough to accompany them, when the whole family may be seen springing from tree to tree, or scampering up and down the tall trunks, waving their beautiful tails, and breaking the silence of the woods with their merry chattering. They are wonderful jumpers, and can spring from the highest branches to the ground without harm. They are not runners, but can jump so nimbly through the grass and dried leaves that it is impossible to catch them. The favorite food of the squirrel is acorns, nuts, and seeds and grain of all kinds, and it will sometimes nibble leaf-buds and tender shoots of young trees in the spring. Its teeth are so sharp and strong that it will gnaw the hardest nutshell. Nothing is prettier than to see this graceful creature sitting upright, its beautiful tail curled over its back, gnawing at a nut which it skillfully holds in its fore-paws. As it is not afraid unless one approaches too near, when it whisks out of sight in a twinkling, its habits may be easily studied. It is a very provident little animal, and lays up large stores of nuts for its winter food. As those which live in trees have no store-house like that of the chipmunk, they deposit their hoard in hollow trunks or under heaps of dried leaves. Nothing is more common than to find little stores of nuts in a snug corner in hickory woods, carefully packed together by these cunning creatures.