I have 6 Easter Eggers that are pullets from this spring. Once they began laying, each one was laying eggs of varied shades of blue to green. As the weather turned cold, I am no longer finding colored eggs from the EE girls. I have 24 other layers of varied breeds and they all lay brown eggs. I am wondering if it is typical for EEs to lay brown eggs in winter, and will they turn blue to green again in spring? Or is it more likely they've stopped laying all together? Thanks!