Squirrels are among the most common wildlife you see around parks, backyards, and wooded areas. But not all squirrels are the same. Two of the most widespread types are tree squirrels and ground squirrels, and while they may look somewhat alike at first glance, their behaviors, habits, and even physical traits can be very different.
If you’ve ever spotted a squirrel running across a power line or darting into a burrow in a field, chances are you’ve encountered either a tree squirrel or a ground squirrel. Knowing the differences can help you understand their habits, manage them if they live near your home, and simply appreciate how diverse these animals actually are.
From my own personal experience, I’ve often noticed how tree squirrels behave much bolder around people compared to ground squirrels. The more I observed them, the more I realized just how different their lifestyles really are. Let me walk you through the full breakdown of what sets these two types apart.
Physical Differences Between Tree Squirrels and Ground Squirrels
Tree squirrels and ground squirrels may both have bushy tails and sharp claws, but when you look closely, you’ll see some clear distinctions.
Tree squirrels usually have slender bodies, longer tails, and sharp claws suited for climbing. Their fur can range from gray to reddish-brown, depending on the species. Their tails are especially fluffy and serve as both a balancing tool and a shield against the cold when they sleep.
Ground squirrels, on the other hand, often have shorter, less bushy tails. Their bodies are a bit stockier, and their claws are built more for digging than climbing. You may also notice spots or stripes along their backs, which tree squirrels typically don’t have.
These small differences make a big impact on how each type of squirrel moves, survives, and adapts to its surroundings.
Where They Live
One of the easiest ways to tell them apart is by looking at their habitat.
Tree squirrels spend most of their lives above ground. They nest in trees, build dreys (leafy nests), and can be spotted leaping across branches or running along rooftops. They rely heavily on trees not just for shelter, but also for food storage and safety from predators.
Ground squirrels, as their name suggests, live underground. They dig elaborate burrow systems that can stretch several feet long. These burrows provide shelter from weather and predators. When you see small holes across a field or open space, there’s a good chance they belong to ground squirrels.
This difference in habitat is one of the main reasons their behaviors and lifestyles are so distinct.
Diet and Eating Habits
Both tree and ground squirrels are omnivores, but their diets often reflect their environments.
Tree squirrels feed on nuts, seeds, fruits, and sometimes bird eggs or insects. They’re famous for storing food in hidden spots to survive the winter. If you’ve ever planted a garden, you know how tree squirrels can make off with tomatoes, corn, or even flowers.
Ground squirrels eat seeds, grains, grasses, and insects. Because they live closer to the soil, they tend to nibble more on vegetation and can sometimes damage crops in agricultural areas. In fact, in many regions, farmers see ground squirrels as pests because of how much damage they can cause to fields.
So while both eat similar things, tree squirrels are more likely to raid bird feeders, while ground squirrels are the culprits behind chewed-up lawns or fields.
Behavior and Daily Activity
Behavior is where you’ll start to notice striking differences.
Tree squirrels are highly active climbers. They’re quick, agile, and spend much of their day moving from tree to tree. You’ll often see them chasing each other along branches, showing off their athletic abilities.
Ground squirrels are less acrobatic and spend more time on flat land. They’re known to stand upright on their hind legs, scanning the area for predators. They also spend time sunning themselves near burrow entrances.
Another key behavioral difference is in how they react to threats. Tree squirrels dash up trees for safety, while ground squirrels dive into their burrows. Each has evolved its own escape strategy depending on its habitat.
Social Structure
Tree squirrels are generally more solitary. They don’t live in large groups, and while you may see several in one tree, they aren’t necessarily part of a tight-knit community. They mostly come together during mating seasons.
Ground squirrels, however, are more social. Many species live in colonies with multiple burrows and shared areas. These groups provide safety in numbers, as they can alert each other when predators are near.
This difference in social structure plays a big role in how each type survives and reproduces.
Winter Survival
How these squirrels handle winter is another point of contrast.
Tree squirrels do not hibernate. Instead, they rely on the food they’ve stored in the fall. They stash acorns, nuts, and seeds in multiple spots and use their memory to retrieve them when food is scarce. Their thick fur and cozy nests help them get through the cold months.
Ground squirrels, depending on the species and region, may hibernate. They enter a deep sleep in their burrows, lowering their body temperature and slowing their metabolism to survive long winters. In warmer regions, some ground squirrels may not hibernate but may enter a lighter state of dormancy.
Interaction With Humans
Both types often cross paths with people, but in different ways.
Tree squirrels are common in cities and suburbs. They raid bird feeders, dig up gardens, and sometimes even chew wires or enter attics. Despite being considered nuisances at times, many people enjoy watching them for their playful antics.
Ground squirrels, especially in agricultural areas, are often viewed less favorably. Their burrows can damage irrigation systems, weaken the soil under buildings, and destroy crops. Because of this, they’re sometimes controlled more aggressively by farmers and landowners.
Predators and Threats
Squirrels are prey to many animals, but their predators differ slightly based on their habitat.
Tree squirrels face threats from hawks, owls, raccoons, and domestic cats. Their ability to climb and hide in trees is their main line of defense.
Ground squirrels are hunted by snakes, coyotes, foxes, and birds of prey. Their burrows serve as their best protection. Some species even have clever defenses, like kicking dirt at snakes or making alarm calls to warn others.
Lifespan
In the wild, tree squirrels usually live between 6 to 12 years, though many don’t survive that long due to predators.
Ground squirrels often have shorter lifespans, averaging 3 to 6 years. This difference is partly due to their exposure to ground predators and agricultural control efforts.
Why These Differences Matter
Understanding these differences isn’t just about curiosity. It matters for homeowners, gardeners, and farmers. Knowing whether you’re dealing with a tree squirrel or a ground squirrel helps you figure out how to manage them.
For example, securing your attic and bird feeders may reduce problems with tree squirrels. Filling burrows or using exclusion methods may help limit ground squirrel damage.
It also helps wildlife enthusiasts better appreciate these animals for what they are — two unique types of squirrels adapted to different lifestyles.
Final Thoughts
Tree squirrels and ground squirrels may share the same broad family, but their lives are shaped by very different needs and environments. One thrives in the treetops, agile and quick, while the other digs deep into the earth, relying on burrows and group living.
From my own personal experience, I’ve come to enjoy watching tree squirrels dart around trees in urban parks, but I’ve also seen how ground squirrels create entire networks of burrows in open fields. Both are fascinating in their own ways, and both play roles in nature’s balance.
So next time you spot a squirrel, take a closer look. Is it climbing a tree, or vanishing into a hole in the ground? That small detail tells you a lot about the kind of squirrel you’re observing, and just how different these creatures really are.