I have 3 barred rock hens. Two of them are very friendly, but lately one of them is skittish and today she didn't go into roost with the others, and stayed in the run in the dark squatting and jumping up trying to fly straight up into the wire ceiling. She seems to be the odd ball, stays away when treats come , and will join the other two after a little bit. She was very verbal today, so i am thinking maybe she is getting ready to lay her egg. I am getting 2 eggs a day, i'm thinking she hasn't yet.