I just put out 6week olds in a coop thats not all that secure. I see holes up top that need patching with hardware cloth; will do tonight. These chicks I hatched and they are my experimental group for free ranging but I have become attached. I may bring them inside the main coop tonight which is a fortress see my page. Just curious about chicken eating critters that climb. We have everything; fox, possum, feral cats, raccoons, hawks, coyote, Lord knows what else....thanks guys