shock-dwellers were the common house-mice, Mus musculus. But they are not the only mice that have warm beds in winter. In fact, bed-making is a specialty among the mice.
Zapus, the jumping-mouse, the exquisite little fellow with the long tail and kangaroo legs, has made his nest of leaves and grass down in the ground, where he lies in a tiny ball just out of the frost's reach, fast asleep. He will be plowed out of bed next spring, if his nest is in a field destined for corn or melons; for Zapus is sure to oversleep. He is a very sound sleeper. The bluebirds, robins, and song-sparrows will have been back for weeks, the fields will be turning green, and as for the flowers, there will be a long procession of them started, before this pretty sleepy-head rubs his eyes, uncurls himself, and digs his way out to see the new spring morning.
Does this winter-long sleep seem to him only as a nap overnight?
Arvicola, the meadow-mouse, that duck-legged, stump-tailed, pot-bellied mouse whose paths you see everywhere in the meadows and fields, stays wide awake all winter. He is not so tender as Zapus. The cold does not bother him; he likes it. Up he comes from his underground nest, – or home, rather, for it is more than a mere sleeping-place, – and runs out into the snow like a boy. He dives and plunges about in the soft white drifts, plowing out roads that crisscross and loop and lady's-chain and lead nowhere – simply for the fun of it.
Fairies do wonderful things and live in impossible castles; but no fairy ever had a palace in fairy-land more impossible than this unfairy-like meadow-mouse had in my back yard.
One February day I broke through the frozen crust of earth in the garden and opened a large pit in which forty bushels of beets were buried. I took out the beets, and, when near the bottom, I came upon a narrow tunnel running around the wall of the pit like the Whispering Gallery around the dome of St. Paul's. It completely circled the pit, was well traveled, and, without doubt, was the corridor of some small animal that had the great beet-pit for a winter home.
There were numerous dark galleries branching off from this main hallway, piercing out into the ground. Into one of these I put my finger, by way of discovery, thinking I might find the nest. I did find the nest – and more. The instant my finger entered the hole a sharp twinge shot up my arm, and I snatched away my hand with a large meadow-mouse fastened to the end of my finger, and clinging desperately to her, lo! two baby mice, little bigger than thimbles.
In this mild and even temperature, four feet below the frozen surface of the garden, with never a care as to weather and provisions, dwelt this single family of meadow-mice. What a home it was! A mansion, indeed, with rooms innumerable, and a main hall girdling a very mountain of juicy, sugary beets. This family could not complain of hard times. Besides the beets, the mice had harvested for themselves a number of cribs of clover-roots. These cribs, or bins, were in the shape of little pockets in the walls of the great gallery. Each contained a cupful of the thick, meaty tap-roots of clover, cut into lengths of about half an inch. If the beets should fail (!), or cloy upon them, they had the roots to fall back on.
It was absolutely dark here, and worse; there was no way to get fresh air that I could see. Yet here two baby mice were born in the very dead of winter, and here they grew as strong and warm and happy as they would have grown had the season showered rose-petals instead of snowflakes over the garden above.
Hesperomys is the rather woodsy name of the white-footed or deer-mouse, a shy, timid little creature dwelling in every wood, who, notwithstanding his abundance, is an utter stranger to most of us. We are more familiar with his tracks, however, than with even those of the squirrel and rabbit. His is that tiny double trail galloped across the snowy paths in the woods. We see them sprinkled over the snow everywhere; but when have we seen the feet that left them? Here goes a line of the wee prints from a hole in the snow near a stump over to the butt of a large pine. Whitefoot has gone for provender to one of his storehouses among the roots of the pine; or maybe a neighbor lives here, and he has left his nest of bird-feathers in the stump to make a friendly call after the storm.
A bed of downy feathers at the heart of a punky old stump beneath the snow would seem as much of a snuggery as ever a mouse could build; but it is not. Instead of a dark, warm chamber within a hollow stump, Whitefoot sometimes goes to the opposite extreme, and climbs a leafless tree to an abandoned bird's nest, and fits this up for his winter home. Down by Cubby Hollow I found a wood-thrush's nest in a slender swamp-maple, about fifteen feet from the ground. The young birds left it late in June, and when Whitefoot moved in I do not know. But along in the winter I noticed that the nest looked suspiciously round and full, as if it were roofed over. Perhaps the falling leaves had lodged in it, though this was hardly likely. So I went up to the sapling and tapped. My suspicions were correct. After some thumps, a sleepy, frightened face appeared through the side of the nest, and looked cautiously down at me. No one could mistake that pointed nose, those big ears, and the round pop-eyes so nearly dropping out with blinking. It was Whitefoot. I had disturbed his dreams, and he had hardly got his wits together yet, for he had never been awakened thus before. And what could wake him? The black-snakes are asleep, and there is not a coon or cat living that could climb this spindling maple. Free from these foes, Whitefoot has only the owls to fear, and I doubt if even the little screech-owl could flip through these interlaced branches and catch the nimble-footed tenant of the nest.
In spite of the exposure this must be a warm bed. The walls are thick and well plastered with mud, and are packed inside with fine, shredded bark which the mouse himself has pulled from the dead chestnut limbs, or, more likely, has taken from a deserted crow's nest. The whole is thatched with a roof of shredded bark, so neatly laid that it sheds water perfectly. The entrance is on the side, just over the edge of the original structure, but so shielded by the extending roof that the rain and snow never beat in. The thrushes did their work well; the nest is securely mortised into the forking branches; and Whitefoot can sleep without a tremor through the wildest winter gale. Whenever the snow falls lightly a high white tower rises over the nest; and then the little haycock, lodged in the slender limbs so far above our heads, is a very castle indeed.
High over the nest of the white-footed mouse, in the stiffened top of a tall red oak that stands on the brow of the hill, swings another winter bed. It is the bulky oak-leaf hammock of the gray squirrel.
A hammock for a winter bed? Is there anything snug and warm about a hammock? Not much, true enough. From the outside the gray squirrel's leaf bed looks like the coldest, deadliest place one could find in which to pass the winter. The leaves are loose and rattle in the wind like the clapboards of a tumble-down house. The limb threatens every moment to toss the clumsy nest out upon the storm. But the moorings hold, and if we could curl up with the sleeper in that swaying bed, we should rock and dream, and never feel a shiver through the homespun blankets of chestnut bark that wrap us round inside the flapping leaves.
Be it never so cozy, a nest like this is far from a burrow – the bed of a fat, thick-headed dolt who sleeps away the winter. A glance into the stark, frozen top of the oak sends over us a chill of fright and admiration for the dweller up there. He cannot be an ease-lover; neither can he know the meaning of fear. We should as soon think of a sailor's being afraid of the shrieking in the rigging overhead, as of this bold squirrel in the tree-tops dreading any danger that the winter winds might bring.
There are winters when the gray squirrel stays in the hollow of some old tree. A secure and sensible harbor, this, in which to weather the heavy storms, and I wonder that a nest is ever anchored outside in the tree-tops. The woodsmen and other wiseacres say that the squirrels never build the tree-top nests except in anticipation of a mild winter. But weather wisdom, when the gray squirrel is the source, is as little wise as that which comes from Washington or the almanac. I have found the nests in the tree-tops in the coldest, fiercest winters.
It is not in anticipation of fine weather, but a wild delight in the free, wild winter, that leads the gray squirrel to swing his hammock from the highest limb of the tallest oak that will hold it. He dares and defies the winds, and claims their freedom for his own. From his leafless height yonder he looks down into the Hollow upon the tops of the swamp trees where his dizzy roads run along the angled branches, and over the swamp to the dark pines, and over the pines, on, on across the miles of white fields which sweep away and away till they freeze with the frozen sky behind the snow-clouds