We have in this latitude but one species of hibernating mouse—the long-tailed jumping mouse, or kangaroo mouse, as it is sometimes called from its mode of locomotion. Late one fall, while making a road near "Slabsides," we dug one out from its hibernation about two feet below the surface of the ground. It was like a little ball of fur tied with a string. In my hand it seemed as cold as if dead. Close scrutiny showed that it breathed at intervals, very slowly. The embers of life were there, but slumbering beneath the ashes. I put it in my pocket and went about my work. After a little time, remembering my mouse, I put my hand into my pocket and touched something very warm and lively. The ember had been fanned into a flame, so to speak. I kept my captive in a cage a day or two and then returned it to the woods, where I trust it found a safe retreat against the cold.
VII
BIRD LIFE IN WINTER
The distribution of our birds over the country in summer is like that of the people, quite uniform. Every wood and field has its quota, and no place so barren but it has some bird to visit it. One knows where to look for sparrows and thrushes and bobolinks and warblers and flycatchers. But the occupation of the country by our winter residents is like the Indian occupation of the land. They are found in little bands, a few here and there, with large tracts quite untenanted.
One may walk for hours through the winter woods and not see or hear a bird. Then he may come upon a troop of chickadees, with a nuthatch or two in their wake, and maybe a downy woodpecker. Birds not of a feather flock together at this inclement season. The question of food is always an urgent one. Evidently the nuthatch thinks there must be food where the chickadees flit and call so cheerily, and the woodpecker is probably drawn to the nuthatch for a similar reason.
Together they make a pretty thorough search,—fine, finer, finest. The chickadee explores the twigs and smaller branches; what he gets is on the surface, and so fine as to be almost microscopic. The nuthatch explores the trunks and larger branches of the trees; he goes a little deeper, into crevices of the bark and under lichens. Then comes Downy, who goes deeper still. He bores for larger game through the bark, and into the trunks and branches themselves.
In late fall this band is often joined by the golden-crowned kinglet and the brown creeper. The kinglet is finer-eyed and finer-billed than even the chickadee, and no doubt gathers what the latter overlooks, while the brown creeper, with his long, slender, curved bill, takes what both the nuthatch and the woodpecker miss. Working together, it seems as if they must make a pretty clean sweep. But the trees are numerous and large, and the birds are few. Only a mere fraction of tree surface is searched over at any one time. In large forests probably only a mere fraction of the trees are visited at all.
One cold day in midwinter, when I was walking through the snowless woods, I saw chickadees, nuthatches, and woodpeckers upon the ground, and upon roots and fallen branches. They were looking for the game that had fallen, as a boy looks for apples under the tree.