I have a bunch of pullets hatched from my barred rock rooster and an americauna hen last May. They should be 26 weeks old on Wed 11/7. None of them have laid a single egg. I bought 4 other chicks born the same day from a farm store (2 wellsummers and 2 marans) to put in with them, and they have not laid yet either. We turned on a light for them about 3 weeks ago, so they get several hours of light before the sun comes up, totaling more than 14 hours. Does anyone have any insight into why they might not be laying yet?