Preparing for Winter
Squirrel nests that can see assembled in the forks of trees are called dreys. These nests are usually built of twigs, dry leaves and grass. You can typically see them if you look about 20 feet or higher in the trees.
Squirrels build nests to survive winter, survey their territory and care for their young in the Spring. Most squirrels will build several dreys in their territory, which will be close to their food supplies. Tree nests help squirrels survive winter by insulating them from cold winds.
