I have a big problem that I am facing. I have 16 2 week old chicks in my brooder pen now and I have up to 50 eggs set to hatch on the 24th of the month My grow out pen is just a old swing set frame with chicken wire around it. I would just put them int he coop, but I have 10 hens in there and I have had little's get out of there before. I have a dog house in there and there is now a door in the right hand side. Also there is a tarp over the left side. The night are still kinda cold out here and I am not sure when to put the babies out into the pen to make room for the eggs that are due on the 24th of this month. I plan on having a heat lamp out there and trying ot put something on the sides to keep the wind down on the ground. What else can I do?