You’ll usually spot squirrel babies high up in tree nests, tucked inside hollow trunks, or hidden away in quiet attic corners. Most tree squirrels give birth in a leafy drey or a tree cavity, but sometimes they’ll use sheltered human structures like attics or sheds if those places seem safe.
If you’re hoping to notice signs of a nest or just want to keep your home squirrel-free, it helps to know where these animals prefer to have babies and what drives their choices.
Stick around to learn about their nesting habits, when babies arrive, and what you can do if you find a nesting site close to home.
Where Do Squirrels Have Babies?
Let’s dig into where squirrels actually build their nests, how they decide on safe spots, and when they sneak into houses or attics. Their nesting habits definitely change with the seasons.
You’ll see details about tree dreys, cavities, ground burrows, and the quirks of different squirrel species.
Squirrel Nest Types and Locations
Squirrels use two main nest types: leaf-and-twig dreys and tree cavities.
Dreys look like messy balls made from leaves, moss, and twigs. You’ll usually spot them wedged in forked branches, often 20–60 feet up. Grey squirrels and fox squirrels seem to prefer building dreys.
Tree cavities offer better protection. Red squirrels and some greys use natural holes or even abandoned woodpecker spots to raise their babies.
Flying squirrels love hollow trees or attic spaces. They line these places with soft, cozy materials.
Ground squirrels take a different route—they dig burrows. Their babies stay underground until they’re furred and active.
Look for small holes or worn paths near burrow entrances if you’re curious.
Selection of Nest Sites for Safety
Squirrels don’t just pick any old spot. They look for good cover, height, and places where predators can’t easily reach.
Mothers usually choose high forks or deep cavities, hiding nests from hawks and owls. Dense leaves around the nest help keep the babies warm and out of sight.
Food sources play a big role. Moms want their nests close to nuts or seeds so they don’t have to travel far while nursing.
If something threatens the nest—maybe a predator or loud disturbance—squirrels can move their babies to a backup nest pretty quickly.
The structure of the nest matters too. Cavities with narrow entrances block out raccoons and bigger threats.
Dreys are easier to rebuild, so females often make several and switch between them for safety or comfort.
Squirrels Using Human Structures
When trees or natural cavities are scarce, squirrels get creative. They’ll move into buildings—attics, eaves, soffits, even chimneys or wall voids.
Flying squirrels, in particular, seem to love attics for their warmth and quiet.
You might hear scratching at dawn or dusk, or notice chewed insulation. Noise often ramps up in spring and late summer when babies arrive.
If you spot a mother darting into a tiny hole in your siding or soffit, there’s a good chance her babies are inside.
If you need to remove squirrels, check your local wildlife rules first. Kicking out adults before the babies are old enough can leave helpless kits behind.
If you find abandoned or fallen babies, consider calling a wildlife rehabilitator.
Seasonal Changes in Nesting Habits
Most tree squirrels breed twice a year: once in late winter or early spring, and again from mid-summer into early fall.
You’ll notice new dreys or more squirrel activity around March–May and again July–September. Babies usually show up about 38–46 days after mating.
In winter, squirrels really prefer cavities and insulated dreys. Hollow trunks keep heat better than leaf nests, especially in cold places.
Flying squirrels get more active inside attics during winter and early spring.
During breeding season, mothers visit nests more often and sometimes rotate between several to keep their young safe.
Once the babies start climbing and exploring—usually about 6–10 weeks in—they spend more time outside, and nest activity drops off.
Understanding Squirrel Birth and Early Life
Squirrel litters arrive in warm, hidden nests and need a lot of care from their mom.
Let’s look at when babies are born, how many to expect, how long they stick around, and what to do if you come across one.
When Do Squirrels Have Babies?
Most tree squirrels breed twice a year. Usually, the main breeding times are late winter to early spring, and again in late summer.
This timing gives moms a better shot at raising babies when there’s plenty of food.
Gestation lasts about 38–46 days, so babies aren’t far behind after mating. You’ll spot newborns mostly in spring and midsummer.
Timing can shift a bit depending on species and climate. Some ground squirrels only breed once a year in spring, and city squirrels might breed a little earlier or later.
If you notice a drey lined with fur or see a squirrel spending lots of time at one tree, she’s probably pregnant or caring for babies.
How Many Babies Do Squirrels Have?
Litter size depends on species and health. Most tree squirrels have 2 to 8 babies, but 3–4 pups per litter seems most common.
Some ground squirrels and other species have different averages.
Bigger litters demand more food and attention, so not all babies survive if food is scarce.
The mother nurses her young and may split care between two litters in a year if things go well.
Litter size can change based on the mom’s age, local food supply, and stress.
If you hear lots of squeaking from a nest in late summer, that mom likely worked hard through both breeding seasons.
How Long Do Baby Squirrels Stay With Their Mother?
Kits are born blind and hairless, sticking close in the nest for weeks. Their eyes open at about 3–4 weeks.
By 6–8 weeks, they start nibbling solid food and try short trips outside the nest.
Moms keep nursing and teaching for about 8–10 weeks. By 10–12 weeks, most young squirrels forage on their own and start becoming independent.
They usually reach sexual maturity around one year, though that varies.
If you see little squirrels still begging or returning to a nest, they’re probably not ready to be on their own. It’s best to leave the area undisturbed so mom can keep caring for them.
What To Do If You Find A Baby Squirrel
Start by watching from a distance—yeah, just hang back for a few hours. The mother squirrel usually heads out to look for food and pops back in pretty often.
Try to notice if the kit seems warm and quiet. Is it near a drey, or did it end up on the ground after a fall?
If you see injuries, or if the baby feels cold, or it’s been alone for a whole day, reach out to a local wildlife rehabilitator. Please don’t give it cow’s milk or try to raise it yourself—it’s trickier than it sounds.
While you’re calling for help, put the baby in a box with good ventilation, line it with something soft, and keep it warm.
If the nest looks okay and you can reach it, go ahead and gently put the uninjured baby back. Definitely wear gloves and don’t handle it more than you need to.
To find rehab contacts, just search for a licensed wildlife rehabilitator nearby or call animal control for advice.
