When you spot a red squirrel, you might wonder just how old it is. The age of a squirrel can often be determined by its physical characteristics, such as fur texture and size. Young squirrels have soft, dense fur that changes as they grow older. Additionally, the development of their tails and other features can give you clues about their age.
If you find a baby squirrel, you can tell its age by observing its development. For instance, at about one week old, a baby squirrel will be mostly hairless, while by two weeks, it will begin to sprout some fur. By around ten to twelve weeks, they become more independent and start to venture out on their own.
Understanding these signs can help you connect with these charming creatures. By paying attention to their appearance and behavior, you’ll get a better idea of their age and enjoy observing their lives in the wild.
Identifying the Age of a Red Squirrel

You can figure out how old a red squirrel is by looking closely at its physical traits and behavior. Different stages of life show distinct signs that can help you estimate age.
Physical Characteristics
When observing a red squirrel, the fur color is a big clue. Juvenile squirrels often have softer, fluffier fur that may appear lighter or more vibrant. As they grow into adults, their fur typically becomes denser and may darken.
Teeth are another useful indicator. At about 3 weeks old, baby squirrels show their lower teeth. The upper teeth appear about a week later. If you spot swollen mammae, that tells you the mother has likely had newborn squirrels recently.
To distinguish between juvenile and adult squirrels, pay attention to the size. Adult red squirrels are typically larger, and their bodies appear more robust.
Behavioral Indicators
Behavior can also reveal the age of a red squirrel. Young squirrels often exhibit playful and curious behavior, frequently climbing and exploring their surroundings. They hide more when they become adults and are more cautious.
Social interactions are key. Adult squirrels tend to establish their own territory, showing more dominant behaviors. In contrast, juvenile squirrels are usually more social and may be seen playing with siblings.
The age can also affect their independence. If you see a squirrel that seems unable to care for itself and is not fully developed, it may be a baby squirrel under 8 weeks old. Understanding these behaviors can help you identify the age of a red squirrel.
Caring for Squirrels of Different Ages
When caring for squirrels, it’s important to know their age. Each stage of life requires specific attention to ensure their health and development.
Nurturing Orphaned Baby Squirrels
If you find a newborn squirrel or an orphaned baby squirrel, your priority should be warmth and nutrition. Baby squirrels can’t regulate their body temperature. Use a heating pad or warm water bottle in a box lined with a soft cloth.
For feeding, you can use a special squirrel formula, which you can find at pet stores or online. Never give them cow’s milk, as it can cause serious health issues. Feed them with a small syringe or dropper, making sure to keep the baby from choking.
Every couple of hours, provide food and keep them hydrated. Observe the baby squirrel’s growth to monitor its health.
Supporting Juvenile and Adult Squirrels
For juvenile squirrels and adult squirrels, your care methods will change. These squirrels need a balanced diet that includes nuts, fruits, and vegetables. Be sure to offer fresh water daily.
If a juvenile squirrel is learning to jump and explore, provide a safe space. Create a small enclosure with natural materials, like twigs and leaves, to mimic their natural habitat.
For adult squirrels, watch for signs of injury or illness, especially if you notice changes in behavior, eating, or grooming. If necessary, reach out to a local wildlife rehabilitation center for advice on their care.
Keeping their environment clean and enriched is crucial for their well-being at every age.