I have 8 hens, and three of them have feathered feet. Of course I know chickens are dirty little girls who like to roll in the dirt, but would it be benificial to them to wash them once or twice a year? I was thinking of bathing them in a tea tree shampoo, since it is a natural insect repelant, even though I am not having problems with mites or lice. Would it be a good precaution for them in spring in summer just to keep them feeling good? Would like anyones advice on this! =)