My male cat is the same way, hunting all the time. But he never touches one of the chickens, I can turn him lose in the chicken yard and he NEVER touches them. When the baby chicks are in the brooder, he will lay on top of it. I am the only one he will let near the brooder at that time. Anyone else will be taking a chance of coming up with some nice bloody scratches. And my famale cat runs from anything that moves. She is a true fraidy cat. Not to much to worry about if you have a rooster, they will put most cats in their place once they are full grown.