My husband is adding the finishing touches to the chicken coop, and i would like some opinions on which type of materials to use in the coop/run. 1) What type of material should we put in the nesting boxes? Most coops i have seen use hay, but could pine shavings be used? 2) The floor of the coop is hard wire with a drawer underneath. I was thinking pine shavings would be the easiest/neatest, but would hay work? I guess im trying to avoid having too many bags of "bedding" material laying around, but i also want to keep clean up as easy as possible. 3) The floor of our run is also hard wire cloth, but we have put a couple inches of "play sand" over the top of it. Is this OK, or should i mix dirt into (or anything else) into it. Thanks in advance for the input!