I have some bobwhites that I put in a new pen. And they will not go into the hutch, they just stay out in the open part of the pen. They seem curious about it. I have a ramp and they walk up and peek inside, but they wont go in. Any thoughts on how to get them used to it? I thought about putting a flashlight in there, so they can see inside. the weather is not bad now, but I want them to go inside the hutch when it starts getting cold. Thanks!