Hi. I have 5 month old pullets. 4 started to lay regularly. One of them hasn't shown any signs of laying (or ready to lay even) until tonight. She is just standing in the nesting box. She isn't displaying signs of egg bound but I am worrying because I have read that it is rare for a chicken to lay at night. Could it be she is just adjusting to something happening to her that is new to her? At what point should I worry because she has just been standing in the box for a few hours now (going on 5 hours). Many thanks from a new chicken owner. If it helps I have Rhode Island whites.