My friends, the meadow mice, were in their glory. Their grass-walled runways were roofed with ice, and not a breath of the chilly breeze that fretted the outer world could reach them. I quite forgot the increasing beauty of the eastern sky in my eagerness to watch the mice. I could look down upon them, through the transparent roofs of their crystal palaces, and wonder what might be their errands. Every one was in a hurry, and none stopped to nibble at a blade of grass or tarried at a cluster of seed-pods. Was it the mere pleasure of activity that prompted them? It was very warm beneath the ice and far from cold above it. But all the while I might be frightening the poor creatures, so I withdrew, at the thought, to the cover of a clump of bushes. Quiet then seemed partially restored, and soon one mouse came from an opening in the roof, where many runways met. It picked its painful way over the frost, as though every crystal was a pricking needle. I moved and away it darted, but not to tell its fellows. Another and another came, and, like the one first seen, they simply ran from post to pillar and back from pillar to post. Perhaps a weasel was on their track—but, if we commence surmising, there will never be an end to it. Let me declare dogmatically, these mice were taking a sun bath, and with this thought, leave them. As I looked about me, the crows again became the most prominent feature of the landscape. They hovered in a loose flock over all the meadows; literally, in thousands, and as the rays of the sun struck them, they too glistened as though the frost crystals had incased their feathers. Higher and higher they rose into the misty air and soon dispersed in every direction; but they will gather again as the day closes, for over the river, somewhere in the woods, they have a roosting-place. I have seen this knoll, now thickly tenanted by mice, black with crows, day after day, within a fortnight. What then became of the mice? Surely their cunning stood them well in need to escape these ravenous birds, and yet they have done so. Stupid as they seem when studied individually, these mice must have a modicum of mother-wit, to thrive in spite of so many odds against them. But now, as the day advanced, the wooded bluff a mile away and the willows on the river-shore gave evidence that not alone were the crows and mice awake to the beauty and warmth of a winter sunrise. The feathered world was now astir and music from a hundred throats filled the crisp air. There was, it is true, not that volume of sound that greets the daybreak in June, and no one voice was as tuneful as a thrush. This mattered not. The essential feature of a pleasant stroll, evidence that I was not alone, was present; for I can not keep company with meadow mice. I call it a dead day, when there are no birds, and he who would know what such a day is should be on the marshes or the river when not a sound rises from the wild waste about him.