Squirrels, those familiar bushy-tailed residents of our parks and backyards, do shed their fur. This process, known as molting, is a natural biological occurrence for many mammals, including squirrels. Shedding their coat is a routine part of maintaining their health and well-being, and generally not a reason for concern.
The Purpose and Timing of Squirrel Shedding
Squirrel shedding is primarily a seasonal adaptation, allowing these animals to prepare for changing weather conditions. They undergo two main molting periods: in the spring and again in the fall. These periods allow squirrels to replace their older, worn fur with a new coat better suited for the upcoming season.
Changes in temperature and daylight hours trigger this shedding process. In spring, as days lengthen and warm, squirrels shed thick winter coats for a lighter, thinner summer coat. In the fall, as temperatures drop and daylight diminishes, they shed their summer fur to develop a denser, more insulating winter coat. This seasonal coat change is important for thermoregulation, helping squirrels maintain a stable body temperature. The new coat also provides better camouflage, helping them blend into their surroundings and avoid predators, such as a gray squirrel’s silver-gray winter coat against bare branches or snow.
Observing Normal Squirrel Shedding
When squirrels are shedding, you might observe several visual signs. Their fur may appear patchy, uneven, or thinner in certain areas, and you might also notice loose clumps of fur. This appearance is a normal part of molting as the old hairs fall out to make way for new growth. For example, red squirrels can look quite “ragged” during their spring molt.
The molting process can take several weeks, with fur loss often starting around the head and progressing down the body. During this time, a healthy shedding squirrel will remain active and exhibit normal behaviors, such as foraging, climbing, and interacting with other squirrels. As the new fur grows in, it often appears denser and shinier than the old coat. While bald spots can sometimes indicate issues like fungal infections or mites, if the squirrel seems otherwise healthy and active, the patchy fur is usually a sign of a routine seasonal shed.