Why Do Rats Burrow in the Ground?
WouterIf you’ve ever wondered why rats burrow in the ground, you’re not alone. Over 21 million homes in the United States experience a rodent infestation each year, and 24% of those infestations are in the garage or attic. The problem is that rodents are excellent diggers and will create extensive tunnel systems to meet their needs. These tunnels can reach under concrete slabs and may eventually lead to serious structural damage.
Rats burrow in the ground for a variety of reasons, including shelter and food. Typically, a rat burrow can be only a half meter deep. In contrast, a mole’s burrow can be one meter deep and will dig at a rate of six meters per hour. These animals are nocturnal, so they are most active during the night.
Rats typically burrow under heavy objects such as dumpsters, but they also make burrows in low, dense shrubbery and ground vegetation. While most of the burrows are not deep enough to reach the foundation of a building, they may dig deeper than that if they believe the food is on the other side.
Rats usually establish new burrows in the summer and fall. These burrows can become more crowded and larger as they grow. If you suspect that you have a burrow, you can fill it with dirt and partially collapse it. Then, observe the burrow for activity. You may notice that there are additional bolt holes that are concealed beneath debris or shrubbery.
