Is there a rule of thumb on how many nest boxes for "x" number of chickens? We're new at this and none of our hens are old enough to lay yet. We've got a very small coop put together and are in the design process of building the "real" coop. I'm sure it sounds silly but I'm still rather unclear about the nesting boxes. It sounds like multiple hens will lay in the same box? They just lay their egg next another hens egg? Also, I've seen that you need 3-4 sq ft of space per chicken. Is that for the coop/roosting structure or the run/grazing area, or both?