Our coop is secure: Cool tree house Our Run: It's OK. It's big and it encloses the coop. I've placed river rocks around the bottom and we've staked the chicken wire down. Although we haven't buried the wire. It's covered on top too. Their Yard: My question: Every day I let them into the side yard that's about 25 by 15ft wide. It's enclosed only by chicken wire along our fence. There is no over head protection. So the only thing keeping cats out of that yard is our friendly cats. I don't think dogs would jump the fence although they could. We're home a lot and outside majority of the time, but we do leave them out when we're gone advise?