Of course it depends on the cats age and temperment. But...my cat submisses to the chickens.
First time we let him out with the chickens, a hen stood tall in front of him ready to peck...he laid down. He likes to hang out under our trees with the chickens and he avoids our 3 month old roos because they chase him. I think if she rescues a mellow cat or a kitten, you could probably teach the cat to not eat chickens. (We let our chickens free-range when we are outside with them). My cat personally prefers lizards and mice over birds, so he leaves the chicks alone too.
