They are growing fast. I have 27 chicks. They will outgrow the brooder box in aprox. one week (when they will be two weeks old). Plans are to put them in a very large plastic pool, and move the brooder light over a portion of that (to continue to maintain temp of 90 for that second week). The large plastic pool is too big to keep here in the kitchen, and I thought this morning, why not put the pool out in the coop? The coop is preditor-proof....It is within 50 feet of my back door. If I did put them out there in a plastic pool inside the coop, I wouldn't need to put a lid over the pool-or even hardware cloth, as the coop is shut and preditor proof. Am I missing something here, is there a reason I shouldn't do this?