I have a feeder that is in the coop 24/7 except for when I am re-filling it or when the coop is being moved, but then it is put back in the coop. We have no problem with rodents or any other animals. If they wanted to get in, they would have to dig under the edge of the coop or be really good at gnawing threw wood and 1/4 inch poultry cloth. My hens don't spill too much feed except for when they are using the little one in the broody-breaker that fits inside the regular coop.