I think the Americana bantam cross is 8 months old the Buff orpington (?)is either 5 months or 18 months, I was told she hatched in July. She is the one who has laid 5 eggs and then quit. They are out side many hours a day and stay in the house at night. Is that what you were referring to when you asked about a daylight for them. They free range in my yard and garden most of the day light hours.
light in the coop is what I meant actually the fact they free range they may have a nest in hiding look around but could also be just the shorter days