My little one+ week old chicks are in their flight-testing stages. My brooder is 24" tall and a few have nearly cleared the side attempting to see what is on the other side. I have hardware cloth and am going to build a frame to attach it to for the top of the brooder this afternoon. Will this be OK? They really don't NEED to try to fly, do they? They will have plenty of time to do that when they are out of the brooder in another few weeks, right?