Oh I love them seeing it done, but it makes it harder to keep it going and making sure they don't get hurt. Everything we wre working with cold have seriously injured them. But they were fine as long as I watched them like a hawk. The top does have a large gap for air to circulate. There is a three inch gap all the way around the top. I have them in there now, and I think I'm going to keep them locked in there for a few days so they know that is home.