Hi, I think I went through just about every page of the "show me your quail coop/pen" thread. I must say, there's a lot of creative people out there and I'm envious. I noticed virtually every pen was raised off the ground with the exception of a few, and I was wondering if there's a real benefit to that or if they work well on the ground too. My house is built on a hill, so there is a door on the main floor and a door outside from the basement. We have a deck that extends out the back side of our house and underneath the deck is a concrete ground leading to the basement door. It's easily 150 square feet and is protected on all sides except for one(would be very quick for turning into a coop) and it's got the deck above it to protect from the rain for the most part. If I were to predator proof this area would it be okay for the quail to run around and live, or do they really do a lot better in the raised pens?