I have spent the last 2 weeks creating a system for locking up my feed at night. 4 coops lock up with the food inside. Then I have another 3 that had their bowls out in their pens. I use chamber pots. I got a few of those paint buckets from Lowe's, drilling 2 holes in the bottom. Put the chamber pot on a concrete patio block, put the paint bucket over it upside down. Attached a wire and ran it thru a pulley and to outside the pen, and a hook for raised and a hook for lower. So at night, I just lower the buckets without having to go into the pens. So I made the rats hungry, and my poison in the bait traps is being nibbled on. Last week I put a rat snap type trap out with some dog food smeared on the trigger. The food was gone the next day, but the trap didn't go off. But yesterday, a dead rat in a trap that had no bait in it for a week! How stupid is that?