I recently got 10 ameraucana chicks. We built a very secure coop for them in the barn, but I still need to build a run for them. I am wondering what materials you would recommend using. We have raccoons around that can be very viscous, I've seen them manage to kill a mother cat and kittens housed in a closed in area under the stairs, there was room for them to be out of reach but somehow the raccoons reached through the mesh and got ahold of them and it was only on one side, the rest had no access. (This was at the inlaws). There is also a coyote and hawks around. The coyote has come right into our yard to eat pears from our tree! I was considering converting a dog run that is enclosed from above, I've seen used ones available that are quite large but I am not sure this would be secure enough. I am aware I will have to secure against burrowing as well. My plan is to secure the run to the barn and convert one of the windows to a chicken entrance. I am also planning on keeping at least one rooster (chicks are straight run) Any advice would be appreciated.