Winter or Moulting?

[lambchick]

Earlier this winter, even late fall, our young hens almost stopped laying altogether. Then even as the days were getting shorter, their egg production started to come back up again.

Is their loss in production from moulting or from the change in daylight hours? We do not have a light for them in their coop.

Thanks!

 

[FlashPointFarm]

I'd say it's lack of light.