How Does a Squirrel Survive in the Winter?

Tree Squirrels

Tree squirrels build nests out of leaves, twigs and other materials that they find in their surroundings. The nests provide homes and help to keep them warm. Tree squirrels gather food and stash it in hidden locations close to their nest, to be eaten later. Before winter comes, they fatten themselves up by eating a lot, and they grow a thicker fur coat. When winter comes, they keep warm in their nest, and mostly rely on their hidden stash of food for nourishment. If the weather is really cold, squirrels may share nests with one another in order to share body heat and keep warm.

Ground Squirrels

Ground squirrels live underground. They dig tunnels and rooms under the ground or in the side of a hill. Their underground homes are quite complex, with separate rooms for food storage, sleeping and bathroom use. The underground homes provide protection from the weather and predators. Ground squirrels store food in their underground caverns for use when the weather is cold and food is less available. When food is plentiful, the squirrels eat a lot in order to gain body fat that will keep them warm in the winter. When the winter comes, ground squirrels spend most of their time sleeping underground, and rely on their stored food for nourishment. Ground squirrels may sleep close together to share body heat.

Warm Climates

Squirrels are less active in times of cold weather, and instead focus their energy on staying warm in their home. They only have brief periods of activity when eating stored food and going to the bathroom. In areas where the winters do not get very cold, squirrels are more active year-round. They still store food in case it is needed, but do not have the lengthy periods of inactivity.

Adaptivity

Squirrels will adapt their lifestyles if necessary in order to survive. Mostly vegetarians, they will eat birds' eggs and insects when vegetation is unavailable. Squirrels, who are normally territorial over their homes, will share their homes with others when body heat is needed to keep warm. When the weather warms up, the squirrels part ways.

Resources

• Squirrel Facts