Has anyone had any luck with using moth balls to deter unwanted pests? If so, what kind did you use? Any other suggestions of pest control? I have livestock such as horses that could potentially get near the chicken pen so nothing that would harm a grazing animal. We installed a motion light but I'm not 100% convinced that will deter them. Any help would be greatly appreciated! My grandmother had chickens in the coop previously that were killed by an unknown animal (probably weasel where I live). Thanks!