It seems like, once I get over one issue, a new issue emerges. This time it's in the form of chick-snatching possums. The first chick was snatched a few days ago, but I didn't think much of it since I had accidentally left the chick gate unlocked and the chick could've squeezed through the small gap between the door and the frame. Yesterday, another chick went missing, this time the gate was locked and everything was secure. I firmly believe it's possums because I've seen them on our privacy fence(Which encloses our yard to protect my animals from most predators), I've seen the dig/scratch marks they make in our yard, and there really isn't another predator in the area to be suspicious of. We live in a rural town that's still rural enough to have a good population of possums, raccoons, hawks and such, but town-y enough to not have coyotes, foxes, and other common predators. No stray dogs can get into the yard either. The chicks were also only snatched at night too. And, to top it off, the unwelcome visitor came back last night, made a mess where he had jumped down the privacy fence and into our yard, and pooped next to the chick area. Luckily I brought the chicks inside the house last night since they're old enough to be away from mom, so nobody was harmed. But, how do I keep these pests out? Three sides of the chick area is 6 foot tall chicken wire, and the other side is a 6 foot tall privacy fence. For now I'm going to trap and release the current problem possum far away from here, but that isn't going to fix the issue. The chick area was never built to be able to sustain a roof, so I don't think I can enclose the entire chick area. There is a sheltered part of the area that the chicks and moms roost in that I could enclose though. But, what can a possum not get through? Can it bite/get through chicken wire? Do I need to actually enclose the area with wood? I can't completely enclose it with wood though, since it needs ventilation. I live in central Texas and an enclosed wooden coop would practically cook my hens.