Hello lovely people. I have what I believe to be an ISA brown hen who has been sleeping all day. I go out frequently to hang out with the ladies and I didn't see her out or eating much at all today. She did have some water when I shewed her out once but that's all I saw. She spent most of the day standing upright on a roost sleeping and now that the rest of the girls are taking a break in the coop and having a group nap she is in the nesting box. Yesterday she was running around so so happy because I took her from a man who was way overcrowded. My place is like heaven for her. She was even singing what I thought was the egg song, but I got no egg. The other girl I picked up with her is super happy and loving life and appears to be very healthy. Not sure if this is something that chickens do on occasion as I'm brand new at this so hoping to get some reassurance or advice. Thanks everyone!