I have had rats and mice on our dairy farm. One of our cats moved into the chicken coop. One day I reached into the nest to collect eggs and there was kittens in the nest. Those kittens grew up with the chickens and never bothered them. Now I have lots of cats in the chicken coop and no rats or mice. If a chicken or duck hatches out babies I lock mom and babies in a separate pen till the babies grow somewhat. I have plenty of spare cats that get along with chickens if anyone should need some!!!
