We are setting up a chicken coop for the first time and I am researching things and never thought about sand in the coop, when I was growing up my dad always put sawdust in the chicken barn and outside was just bare dirt. I want to have a green run (grass/ other plants), is that even a possibility with chickens, do they always peck everything bare?? Or should I have two runs where I can alternate grassy patches so that one can grow in while the other one they peck clean? We hope to have 10-20 chickens. So if I have sawdust in the coop I will have to change it weekly, but sand only twice a year ? that appeals to me! Does anyone have first hand experience what's better sand or sawdust? We live in a pretty wet climate (south, western BC).