One of my hen's legs look awful. They look rough, bumpy and callused. The other hen doesn't have an signs of any problems but I assume this might be scaly leg mites? and the treatment is Vaseline on the legs if I'm not mistaken. This hen will not let me the touch her. She is in a small coop and retrieving her is horrible, frightening and the last time we attempted such a feat she escaped and caused us hours and hours of grief and worry that were resolved only when my husband was able to find and catch her. I've recently noticed that some of my younger birds have mites/lice so I plan on treating them and dusting with sevin this weekend. I'd like to go ahead and treat both hens as well. (Our other hen is very tame). How often is it necessary to repeat the vaseline application? Any tips for treating a bird who would gladly peck my eyes out and stay gone forever were it an option?