Hi, I have three 5 month old pullets who live outside in a coop with a run in my backyard. Its cold and there is alot of snow where I live. Latley I have noticed that my girls have started to look especially dirty. They dont like to go in the run because of the snow and now have taken to digging under the sand in the covered part of the run untill they get to the dirt and then they roll in it. Is there a way i can give them a bath or clean them up because all three are covered in dirt. Its cold so ill probably bring them inside if/when i do decide to give them a bath but iv never bathed a chicken before so I wasnt sure if there was a certain way to do it or what. Thanks!