I bought a hen yesterday, and she's molting (maybe) or been pecked at some. The thing is she's pretty dirty. She's a barred rock and most the her white feathers look dirty. I have washed butts before, but should I wait til more feathers grow in or does it matter? It's going to rain soon, so I'm letting it go. This girl needs a makeover, poor thing!!! And are there any special foods that will help her feathers grow in faster?