Our little Silkie (Sadie) has been laying for about 3 weeks now on a pretty regular basis. Yesterday (Thanksgiving) she laid an egg, but wouldnt' come out of the nesting box. We left for the night and when we got home today, she was "still" in the box. She had laid two eggs and was just sitting on them. We took the two eggs and checked on her a few hours later, and she is still just sitting there. We took her out and checked her over and she seems fine "physically", but made some noise and then laid back down. The temp here is around 40ish but the other girls seem fine. Could she be cold? Or is it something else? Can anyone help us with what might be going on?