I have a predator and a pest, that I just can't seem to get rid of. The first are ants in my chicken yard. What can I spray or dust to get rid of them to where it won't hurt my chickens. The other problem I'm trying to wrap my mind around, is losing 2 of my chickens to either a fox or coyote. I would love any suggestions. I want to free-range my girls, but just can't stand to lose another one.