Rats burrow in the snow, the same way they do in dirt, digging up to 3 feet down, and then moving laterally under concrete slabs or into structures. The rats also pull material, such as newspaper or garbage bags, into their burrows for warmth. Come spring, Villamil warned, the rats that survive the winter and are looking to mate may get more aggressive and brazen.
Don’t let the wintry weather fool you, Chicago. The rats are still around. And when the weather warms, they’ll be out in full force.
