Well it has been a week since i last changed my coop. It is a 7 by 8 and i have 15 chickens. I know i should only have 14 but a few are a smaller breed. My question is this--- How often would i need to change the coop? I am using straw. I put new straw in one week ago. I made it really thick, about 4 inches. My dad said this morning-- " You should change the bedding in the coop after you come home from school today" I checked when I came home today and it isnt really dirty. Can I just flip the straw over and put the clean side that is facing the floor up? Or should i put my last bag of straw in? What are your opinions? I think i can just turn the straw over. I only have one bag left for all winter but I can get more. You all might ask y I have straw in a bag? It was from bales that broke open and I got them for free.