Hi there, I've searched this but have found different answers, so thought it best to ask all you experts on BYC. We're building our new coop for our buff orpington pullets. My husband wants to know what size nest box you recommend and what height off the ground? We were thinking of using milk crates so they can be easily cleaned, but we still need to know how high up to put them, as he would still build a frame for them to sit on even if we used crates. Opinions, please. He's hoping to build the nesting area tonight and I need to get these pullets moved out of the horse stall they're in now so am anxious to get the coop completed! Thanks, in advance, for your advice and opinions!!!