Seen originally at: https://openlab.citytech.cuny.edu/seto1101sp2013
Rains and flooding will cause the critters that live underground to emerge. Just be glad it’s been a relatively dry April. Here’s an article about something that can happen during extreme flooding as seen with Hurricane Sandy.
Here’s an image for you to get out of your head:
Sandy has brought a feast to their feet. New sources of food are washing out of the waterways and along flooded streets, including loads of rotting trash, other rats, pigeons, and fish. The well-fed rats will burrow beneath buildings under cover of night to establish new homes, sliding into holes as small as a half inch (1.3 centimeters)—the width of their skulls—even though their bodies can measure up to 18 inches (46 centimeters) long.