I am moving in about 2 weeks to a new house with a huge backyard, yay! There's an area about 10x10 that is perfect for my girls, nice deep dirt and it's shady and protected on 3 sides by fences and a shed. The only problem is that there are a lot of stray cats in the neighborhood which we don't have where I am now. (And who knows if there's raccoons or anything). Eventually I want to build the whole area into a giant coop but for now I was just going to bring the two pens I have and keep them as they have been. I'm worried about something being able to dig under the sides to get to them, or them digging out since the dirt is so soft. What can I do to prevent the digging? And then what's your best cat/raccoon proof ideas for when I get around to building the whole area into a run for them? Thanks!