You probably spot squirrels every day, but have you ever wondered how they actually live? Most squirrels make their homes in trees, burrows, or nests called dreys. Their lives revolve around finding food, dodging predators, and raising their young. Let’s take a closer look at where they settle down and how their daily habits help them survive.
You’ll notice that different squirrels pick different habitats—some perch on branches, others dig underground tunnels. Why do they make those choices? It’s all about what works best for them.
You might even spot signs of their routines in your own yard if you know what to look for.
Where Squirrels Live: Homes and Habitats
Squirrels pick homes that fit their bodies and lifestyles. Some dig tunnels, some build leaf nests high up, and some glide from tree to tree when night falls.
Tree Squirrel Dwellings and Dreys
Tree squirrels like the eastern gray squirrel (Sciurus carolinensis) and the American red squirrel (Tamiasciurus hudsonicus) build dreys or move into tree cavities.
Dreys look like messy balls of twigs, leaves, and moss tucked into forked branches or thick leaf cover. These nests keep the wind and rain off their young, but honestly, they don’t insulate much when it gets really cold.
A lot of tree squirrels also take over old woodpecker holes or natural tree hollows. Cavities shield them better from cold and sneaky predators.
In Europe, the Eurasian red squirrel (Sciurus vulgaris) uses both dreys and cavities in conifer and mixed forests. You might spot dreys in late summer when the leaves are thick, or notice squirrels slipping into tree holes in winter.
Ground Squirrel Burrows and Tunnel Systems
Ground squirrels and their close cousins dig out underground homes with several entrances, side chambers, and escape routes.
Species like the white-tailed antelope squirrel live in deserts or scrubland and dig shallow burrows for shade and stashing food. Arctic ground squirrels burrow deep into tundra and alpine ground to hide from the cold and hibernate.
Inside these burrows, you’ll find soft nesting spots lined with grass or fur, food stashes, and even lookout mounds. Prairie dogs and marmots go bigger, building large social tunnel systems, while chipmunks keep to smaller, more private tunnels.
If you ever see a bunch of holes clustered together in a field or hillside, you’re probably looking at a ground-squirrel colony with well-worn paths and lookout spots.
Flying Squirrel Gliding and Tree Cavities
Flying squirrels, like the southern flying squirrel (Glaucomys volans), glide between trees using a stretchy skin flap called the patagium.
They stick to dense forests with tall trees, which let them glide from cavity to cavity instead of risking the ground. At night, you’ll catch them using hollow limbs or old woodpecker holes lined with leaves.
Flying squirrels almost never build exposed dreys. Instead, they pick natural cavities, nest boxes, or abandoned holes where they can stay safe and warm.
These hideouts help them raise their babies and dodge predators like owls and raccoons. If you want to attract them, try putting up a nest box near tall, connected trees.
Urban and Suburban Adaptations
Plenty of squirrel species have figured out how to live in towns and backyards. They raid bird feeders, squeeze into attics or chimneys, and build nests in garden trees.
Eastern gray and fox squirrels thrive in parks and neighborhoods, building dreys in maples, oaks, and pines—or sneaking into roof spaces if they can.
Black squirrels are just a color variant of gray squirrels, and they act the same way in cities.
You might notice squirrels nesting in your attic or chimney if they find a cozy spot and easy food. They’ll stash nuts in your lawn, which helps them make it through winter.
If they move into your house, try blocking entry points and trimming branches that reach your roof to keep them out.
How Squirrels Live: Daily Routines and Survival
Most squirrels spend their days foraging for food, staying alert, and caring for their young. Let’s dig into what they eat, how they change with the seasons, and how they raise their babies.
Feeding Habits and Squirrel Food
Squirrels munch on all sorts of plant foods—acorns, walnuts, seeds, pinecones, and fruit. You’ll often spot them stripping pinecones, cracking open nuts, or running off with acorns in their mouths to bury somewhere.
They scatter-hoard, which means they hide small stashes of food all over the place. This way, if one cache gets raided, they’ve got backups.
Funny enough, when another animal watches, squirrels sometimes fake-bury food to throw them off the scent. You might catch them digging quickly and covering up nothing at all.
Now and then, squirrels eat insects or bird eggs, but honestly, most of their meals are plant-based. When they forget where they buried something, they accidentally help forests by spreading seeds.
Seasonal Behavior and Hibernation
Squirrels don’t really hibernate like some animals, but their routines shift with the seasons.
In fall, you’ll see them going wild—gathering food, burying nuts, and bulking up. They add layers of leaves and fur to their dreys, and reinforce tree hollows to brace for winter.
During winter, they slow down, staying in their nests on the coldest or stormiest days. When it’s mild, they’ll pop out for quick food runs.
In spring and summer, they ramp up activity, breed, and teach their youngsters how to climb and find food. You’ll notice them moving more, resting less, and always keeping an eye on their stash.
Raising Young and Family Dynamics
When you see a mother squirrel, she’s usually on her own with her babies. She builds or picks out a drey or tree cavity to keep her kits safe.
Gestation lasts about a month, and she’ll usually have two to four babies in a litter. The mother nurses them, then brings soft food when they’re ready to try solids.
Young squirrels learn by playing—chasing, leaping, and even mock fighting. These games help them practice climbing and escaping danger.
By 8–10 weeks, most juveniles start leaving the nest for short adventures. Fathers don’t help out much; social bonds mostly form between siblings and neighbors.
During this time, mothers defend their nests fiercely if any intruder gets too close.
Communication and Alarm Calls
Squirrels mix up sounds and body gestures to get their point across. You’ll probably hear sharp barks, chatters, or sudden alarm calls if a predator or person comes too close.
Different species and situations change the calls a bit. Some sounds basically shout at other squirrels to freeze or run for it.
Their tails? They’re a big deal here. When a squirrel flicks its bushy tail fast, it’s practically waving a danger flag.
You’ll often spot tail-flagging, teeth-chattering, and that classic tail-high stance right alongside those urgent calls. Scent marking steps in too; sometimes they revisit the same tree over and over for this reason.
All these little signals help squirrels stick together, dodge threats, and keep their food stashes and nests safe from nosy rivals.
