March Nineteenth
In winter meadow mice build neat little nests of dried grass on the ground beneath the snow. They are hollow balls, about the size of a hat crown, with a small opening in one or two sides. The outside is made of coarse, rank grass, while the lining is of the finest material obtainable. The heat from the little animals' bodies soon melts an air chamber around the nest, into which lead many tunnels through the snow. As soon as the snow has melted, you will find these nests scattered about the fields and meadows, but they are empty now.