My pullets are a couple months old, fully feathered. We're building a totally enclosed coop and pen, but it's not ready yet, so they're in an open top pen during the day w/ a little house to go into in the rain. But they seem to rather huddle under a bush when it rains, but they still get wet. Should I put them in the little house and close them in and make them stay in their during rain, or let them do what they want. It almost seems like they have not figured out to go into the house on their own??? Can they get sick if they get wet? It's about 64 today, but some days when it rains it's colder than that. Thank you!