Hi, I haven't had chickens since I was a kid and am getting back into it this year for my children (who are still very young). I built a nice coop to house 6 hens but have questions about the run I'll be building. I have many predators in my area (coyote, fox, fishercat, hawks). My plan is to fully enclose the run which will probably be 10'x5' and 5' high. Here's my question. Should I fully inclose the run ground/floor with wire, or just sink the wire a foot or two down around the edges? I'd like to leave the ground open for them to dust but I'm not sure if a foot or two of wire around the edges would keep digging predators out. Here's a photo of the set up with a run to be built off the back of the coop. I appreciate your thoughts and suggested designs?