Well my enclosure is about um 20by20 so its big. I have a large lamp hanging inside and its covered all the way. She has a parrot cage iside. Kinda like an aviary is what she has got. But she lays under the lamp, on a small nest box beneath it. its been getting cold here in cerntal Ca. I asked 2 friends and their hens stopped laying. Is something wrong with my silkie?