Going into the winter, I had 2 layers and the third was holding out due to motling. As the winter solstice approached, both my layers stopped for about 4 days, then resumed about 1 egg every other day (so I got 1-2 eggs a day, and some days none). As January warmed up in our region, I was surprised to start getting 3 - yes! Josephine began to lay - in the middle of winter. Now that the weather is colder again, I'm back to 1 or 2 a day. My Genevieve seems to be the most consistent layer.
So....as long as they all appear healthy, I don't think you should be too concerned until Spring (warmer weather and longer days).
So....as long as they all appear healthy, I don't think you should be too concerned until Spring (warmer weather and longer days).