Two weeks ago, I added five young hens to my flock. The seller said they were around 28-30 weeks and laying. They are in an insulated coop, with fourteen hours of light a day. The coop has been checked for drafts, and have for the most part been eliminated while still giving them fresh air. They are on laying pellets and have plenty of water. They also get a scoop of scratch grain a day. They are not free range due to predators, they stay within the coop and their run. BUT, they have yet to lay. My question is, am I missing something major? Anything else I can do to try get some production?