How Badgers Keep Multigenerational Burrows Warm, Dry, and Clean

Quick Take

• Badgers do something with old bedding that most burrowing animals never bother with, and this behavior is the key to why their setts stay livable across generations. See why they replace bedding →
• Left unchecked, a badger's cozy bedding quietly transforms into something that actively threatens the whole colony. Discover the parasite threat →
• Badgers solve an underground bathroom problem with a level of deliberate planning you wouldn't expect from a wild mammal. Explore their bathroom habits →
• Moisture is a hidden enemy inside the sett, and the way badgers fight it turns out to serve another purpose entirely. See how moisture is managed →

While a hole in the ground has potential to become quite dirty, burrowing animals make sure to keep their homes clean. Badgers even go through a spring-cleaning phase to make sure their burrows stay hygienic. To avoid parasites, they change out their bedding and air out their burrows. This YouTube Short by @TimsWildlife shows a badger in the process of maintaining their home.

Badger Spring Cleaning

Badgers are burrowing mammals that require adequately sized homes. Instead of a simple hole in the ground, badgers dig out underground tunnel systems known as setts. These tunnels are occupied by multiple badgers across generations, meaning they often make the most of what they build. This includes lining the tunnels with soft bedding such as grass and mosses. Unlike other burrowing animals that simply add more materials on top of old bedding, badgers have been observed replacing their bedding entirely. Fresh bedding isn’t the only way they stay clean. Badgers also dig small pits called latrines specifically for defecation, and they make sure they stay separate from sleeping areas. These examples highlight how hygienic badgers are, but why is this the case?

Badgers clean their burrows for a few main reasons. One is parasite control. Old bedding gradually becomes infested with fleas, ticks, lice, mites, and other parasites that can be harmful. Since they reproduce in the warm bedding material, it’s important to regularly change it out so no new parasites are born. Another reason is moisture management. While their burrows are often cool year-round, they are also humid environments that trap moisture. The bedding absorbs moisture from rainwater, condensation, and even from bodily excretion. This can grow fungi and bacteria. Removing old bedding can keep badgers warm and dry, while also lowering health risks. So, while badgers are wild animals, they maintain clean living quarters and change their bedding frequently.