Hi! I am new to the forum, and backyard chickens. I have four pullets who are going to start laying eggs any day now. They free range for much of the day. Most mornings when I show up, they come running and talking and love to get let out to roam. They are very socialized and active. They eat out of my hand and are already accustomed to their environment and coop. One of my pullets has decided not to come out of the coop today. She is sitting on her roosting bar all morning, very unusual behavior. Should I worry that she is ill? or (optimistically) is she about to start laying? Not sure what laying behavior looks like since none of them have started laying yet. They are between 12-14 weeks old. thanks!