Let me first say, rodents are pests around here. So, Ive used, for several years, a trap for squirrels, called the "Squirrelinator". It is a baited trap that live catches squirrels, 1-10 at a time. The most I've had at once is 3. It works!! This one trap has caught a few hundred, over the past 4 years. https://squirrelinator.com Well, recently, I have also had a problem with field rats that have been inside my garage. I life next to a large wooded section, and they come inside, looking for food and shelter. . They have learned to avoid my rat traps, so I purchased "The Ratinator" . After a week of it being in the garage, they are now being caught, and disposed of, afterward. So, it does work. Winter time will be the real test. http://www.ruggedranch.net/traps.html .