My 12 barred rocks have been laying since August. We had 4 nesting boxes for them. Now, a few of my younger mixed flock, are looking like they are ready to lay and showing interest in the boxes. We added 2 more boxes for now. (so total of 6 ) My concern is that any time that the younger flock takes an interest or gets near the nesting boxes, the older barred rock hens, screech at them, peck at them or chase them out of the coop/area. When the time comes to lay, will the older hens let the younger ones in to the nesting boxes???????? They have been sharing the same coop/food/area for months, so it's not like they are newly put together. Anyone experience this? Thank you!