Ground squirrels are common sights in many landscapes, often scurrying across lawns or darting into burrows. While tree squirrels are renowned for their arboreal agility, ground squirrels also possess climbing capabilities, though their primary habitat remains below ground. This article explores their climbing abilities, differentiates them from tree squirrels, and offers strategies to prevent unwanted climbing.
Ground Squirrel Climbing Abilities
Ground squirrels, despite their name, can climb various structures, though they are not as adept as tree squirrels. They primarily inhabit burrows and are well-suited for a terrestrial lifestyle, but climbing serves specific purposes like seeking food, escaping predators, or surveying their surroundings. Their strong forelimbs and sharp claws enable them to grip surfaces effectively, maintaining stability even on vertical surfaces. They can climb objects like trees and vines to access fruits and nuts, especially during late summer and early fall when they gather food for storage. While they can climb, their preferred response to danger is typically to retreat into their burrows rather than ascend a tree.
Comparing Ground Squirrels and Tree Squirrels
The distinction between ground squirrels and tree squirrels often causes confusion, as both are commonly seen. Their primary difference lies in their preferred habitats and associated behaviors. Tree squirrels primarily reside in trees, building nests in elevated areas and using their agility to move through branches. In contrast, ground squirrels dig extensive burrow systems where they sleep, store food, raise young, and seek refuge from threats. These burrows can extend several feet underground and form complex networks.
Physical characteristics also differentiate them. Tree squirrels typically have long, bushy tails that aid in balance and navigation. Ground squirrels have thinner, less bushy tails. Tree squirrels tend to be more slender and nimble, while ground squirrels can be larger and stockier, with body sizes ranging from 9 to 11 inches, excluding their tails. When startled, tree squirrels typically scurry up a tree or tall structure, while ground squirrels will dart into a nearby burrow.
Preventing Unwanted Ground Squirrel Climbing
Deterring ground squirrels from climbing specific structures often involves physical barriers and modifications. To prevent them from scaling fences, consider installing smooth, slippery covers or fence toppers that curve outwards, making it difficult for them to grip. Roller bars or spinning devices can also be placed atop fences to prevent squirrels from holding on. For garden areas, bury wire mesh fencing 6 to 8 inches underground, bending it outward at a 90-degree angle to prevent burrowing. Ensure the fence extends high enough with a sheet metal cap to deter climbing over.
To keep ground squirrels off trees or bird feeders, strategic placement and physical deterrents are effective. Bird feeders should be positioned at least 10 feet away from other structures from which squirrels could jump, and baffles installed on feeder poles prevent climbing up. These baffles should be made of slippery material, like PVC or metal, and placed at least 4 feet off the ground. Wrapping smooth material like sheet metal or PVC around tree trunks can also stop them from climbing. Regularly trimming tree branches to be at least 6 to 8 feet away from roofs, fences, and other structures can remove easy access points for climbing squirrels.