We have had our 3 girls for a year now and I am in the middle of the famous SPRING CLEANING. I have always used pine shavings, but someone suggested to use straw in the nesting boxes, coop and run. I have one girl that insisits on sleeping in a nesting box and then poops in it too. Nothing I tried will make her stop and she isn't hurting anyone so I figure I would just let well enough alone. What do you all use? Anyone have any suggestions on the poop problem?