What Eastern Gray Squirrel Eat, their Habitats, And origins

Eastern Gray Squirrels are native to the eastern and midwestern United States, as well as parts of southeastern Canada. Their range stretches from the Gulf of Mexico up through Ontario and as far west as eastern Texas and the Dakotas. These squirrels have also been introduced to areas far beyond their original range, including parts of the western U.S., Ireland, the United Kingdom, and Italy, where they’ve adapted incredibly well—sometimes too well, displacing native squirrel species.

They thrive in hardwood forests that feature a mix of oak, hickory, beech, and walnut trees—basically, anywhere with a good supply of nuts. However, they're also incredibly adaptable and have made themselves at home in urban and suburban neighborhoods, city parks, and college campuses. Their high intelligence and flexibility make them expert survivors, no matter the setting.

Although they're best known for their love of acorns, Eastern Gray Squirrels enjoy a varied omnivorous diet. They feed on a wide variety of nuts, seeds, and berries, as well as fungi, bark, tree buds, and even agricultural crops like corn. When other food sources are scarce, they’ve even been known to eat insects, small amphibians, bird eggs, or nestlings—though this behavior is relatively rare.

One of the squirrel’s most impressive behaviors is "caching"—storing food in multiple hidden spots to eat during winter months when food is harder to find. Their excellent memory and keen sense of smell help them locate these stashes later on. Some of their forgotten acorns and seeds actually sprout into new trees, making squirrels accidental but important reforesters!