I have 6 Black Australorp hens about 21 weeks old. They have 4x6 coop w/rollaway egg nestbox attached to side and 12x8 run. And sometimes let them free roam for a hour. I got a light that come on in the coop at 6 am. Current sunset is 7:30. Feed is Purina Organic Layer Crumble with the Oyster...