Hi - my more than a year old BR has not laid for a few days, and has been in the nest box for more than an hour now. I've not noticed that she's had issues until a few days ago, except that she isn't a daily layer. She's free-range, seems to be eating well - the only big issue is that we've had a lot of rain here in Ohio and the coop is too small to keep them in all day. I felt her abdomen - it doesn't seem to be swollen. What could be wrong?