So, I have 13 adults hens in a pen with 8 nesting boxes. The dimension of the inside of the coop, their side, is 12 x 10. It is those hens and 3 roosters. I used to get about close to 5 dz eggs a week, about 8-10 eggs a day, now I've only been getting 1 egg a day. They have a huge run on the outside, so I am positive they have tons of room. What are your opinions on this? What would you do?