You’ve probably seen squirrels darting across your yard and wondered if they disappear in winter or just keep going about their business. The truth? Most tree squirrels stick around all year, though they do change up their hiding spots, what they munch on, and how often you’ll catch them out and about.
Let’s dig into why squirrels don’t just vanish, how they stash food and use their nests, and when you might spot them more (or less). If you’re trying to protect your garden or just want to leave out some squirrel snacks, this stuff’s pretty handy.
So, what actually changes for squirrels from spring to winter? Here’s what you’ll want to know.
Are Squirrels Around All Year?
You’ll spot some kind of squirrel just about every season. Their routines shift depending on the weather, what food’s available, and which species you’re watching.
Seasonal Activity Patterns
Spring and summer bring a flurry of movement. Tree squirrels like Eastern gray and red squirrels get busy every day—mating, raising young, and foraging. They snack on buds, insects, and fresh nuts.
You’ll probably hear loud chasing and those classic territorial calls during breeding season.
When fall hits, squirrels turn into little food-hoarding machines. You’ll see them burying nuts all over the place. That’s their winter pantry—sometimes those forgotten nuts even sprout into new trees.
Squirrels get especially active as they stash food and bulk up for winter.
Winter slows things down but doesn’t stop them. On really cold days, squirrels hang out in their dreys or tree hollows and eat from their hidden food stores.
If the sun comes out and it’s not freezing, you might spot one digging up a nut cache.
Differences Among Squirrel Species
Squirrels don’t all follow the same playbook. Ground squirrels dig burrows, and some—like Richardson’s ground squirrel—actually hibernate. You won’t see much of them in winter since they drop their body temperature and sleep for ages.
Tree squirrels—gray, fox, and red—stay active most of the year. They use leaf nests and tree hollows, live off their stashed snacks, and take short naps called torpor. Flying squirrels? They’re night owls and usually hide out during the day in tree cavities.
Where you live matters too. Down south, most squirrels keep moving all year. Up north, they spend more time tucked away and lean harder on their food stores or burrows.
Hibernation and Torpor Explained
Hibernation and torpor aren’t the same. Hibernation is deep and long—ground squirrels drop their heart rate and body temp for months, living off body fat until spring.
Torpor is more like a quick power nap. Tree squirrels use torpor for a few hours or days to save energy when it’s cold. They can wake up fast to eat or get away from danger.
Flying squirrels sometimes huddle together in a cavity to stay warm instead of going into deep torpor.
If you’re trying to guess if squirrels are around, check which species live near you and what the local winters are like. Ground squirrels vanish in winter, but tree and flying squirrels pop up in short bursts and stick around all year.
How Squirrels Survive Every Season
Squirrels get by with a mix of shelter, food storage, and pretty clever territory habits. They pick their nests, hide their food, and defend their turf so they and their babies can handle both freezing and scorching weather.
Nesting and Shelter Strategies
Squirrels build cozy nests called dreys in tree forks or move into hollow trunks for dens. You’ll often spot a drey made from leaves and twigs high up in a tree.
When winter arrives, they pack those nests with moss and fur to keep the heat in. Some, like red squirrels, prefer tree cavities and will move in if it’s warmer.
Sometimes, especially when it’s bitterly cold, you’ll see squirrels sharing a nest. Adults might huddle up with youngsters or their mate to save energy.
Urban squirrels get creative and might sneak into attics or under eaves. If you hear something in your roof, there’s a good chance a squirrel found a warm, sheltered spot with easy food nearby.
Food Storage and Foraging Habits
Squirrels are expert scatter-hoarders. They bury nuts and seeds all over their territory, counting on those stashes when food gets scarce in late fall and winter.
They use their memory and their nose to dig up these caches, and sometimes move them around to keep other critters from stealing.
In spring and summer, you’ll see them gathering fresh seeds, fruits, and buds—some for eating right away, some for later. Young squirrels watch adults and practice digging and hiding food as they grow up.
If you want to help out, you can offer unsalted nuts, but it’s best not to let them get too used to handouts.
Territorial Behavior Throughout the Year
Territory sizes shift depending on the season and the species. When breeding season hits, males tend to wander farther, while females stick close and guard their nesting spots for their young.
Red squirrels, in particular, really don’t mess around—they’ll chase off any intruders from their food caches or dreys without hesitation.
During the non-breeding months, squirrels seem to relax a bit, especially if there’s plenty of food around. You might catch them flicking their tails or sounding off with warning calls when a stranger shows up in their territory.
Ever wondered if squirrels come back to the same place? Honestly, a lot of them do. They’ll return to their favorite nest trees and those reliable feeding spots, year after year.
