I may have a problem. We bought a new place and have started building a 16'x14'coop.A couple days I came home and found ticks and chiggers on me and a few other family members. I now spray all of us before going out. But next week when I put my chickens in, how do I protect them from mites,lice,& chiggers. I know they will eat the ticks. I looked in the local home improvement store and I didn't see anything I would put in with my chickens. Any ideas on how to control these pest in a large area. I plan on free range after they get use to the new pen.