Getting ready to treat one of my hens for mites/lice and worms. She's not acting herself/not laying and it was suggested this could be her problem. I have noticed a lot of birds around her run/coop and have seen this could be spreading these issues to her. We also noticed some mice had made a nest up inside her coop in the bedding. Question is...How do you keep the birds and mice out of your coop? Any suggestions are appreciated!! We are pretty new to chicken keeping.