Wahh. i have one coop built as a broody house. It has a wall down the middle that is 2ft high, and has a plywood top. And a little screen door. This way I can keep older chicks on the bigger side, which also has a run, and they can jump on top of the little brooder. Anyway, My 7 week old chicks dug under the wall, and some of my 1 1/2 week old chicks got into the other side. Well I was feeding the big chicks some treats this afternoon. And I realized some weren't coming out of the coop. So I went around and peeked in. There were 3 little babies huddled in a corner, being pecked at by the older chicks. Then my two favorite polish babies, were dead on the floor. Trampled and pecked to death! I manged to save the three others, which included my very most favorite chick. But I was too late to save my baby polish's! wahhh. It had to be my sliver and buff laced babies. This was my second time ordering them. The first time they were all dead in shipment. Why is it always the special, or your favorite pets that something bad happens to them. I'm extremely happy that I saved my favorite BLRW chick. But I am heartbroken about the other two. By the way, I dug under the wall and buried some boards. When I checked on them about an hour later. The older chicks were still trying to dig under. Also this group of older chicks is very agressive. Never had mean chicks like these. One bit me today, and drew blood. They fly at you, jump out when you open the door. Peck at you while your feeding. Gr! It's so obnoxious!