For over a week or 2 now my hens have been laying weird. At first we thought it might be snakes but that wasn't it. Three days of the week one of us is at home so we let the chicken roam free. (our 3 acres are fenced in) The other 4 days we keep them in their large coop until we get home. We were out of town for a few days and they had to stay in on their usual days out and since then on the days we work we only get one egg instead of four. When the are out all day we get 3 or 4. Are they ticked off or is it something else.