CHICAGO (AP) — Chicago city workers are laying more traps for rodents.
The Department of Streets and Sanitation says Tuesday that rodent baiting during the first half of the year is up 30 percent compared to the same period in 2012.
Meanwhile, requests for rodent control services are down 15 percent.
The mild winter in 2012 boosted the city's rat population and prompted thousands of requests from residents who were trying to get rid of the urban vermin.
The animals don't hibernate and have to forage for food, something that's often easier to do when temperatures are mild and there's not a lot of snow.
City officials hope the proactive baiting will keep the rats in check.