See attached picture. This is Big Mama Red. I free range my chickens for the last few hours of the sun light. When I open the coop and run the 8 mature hens are waiting and run out enjoying themselves. Today BMR never came out and was just laying in the nester like this. Pretty much the whole time. I took her out and set her outside and she foraged a little and went back inside to this spot. Any thoughts. She is laying and about 7 months old.