Do hens lay less eggs in Winter?

Food, lighting and temperature is regulated in the hen house so the hens experience a comfortable more consistent environment year round when they are inside. Our hens receive between 15 and 16 hours total light per day, including natural and artificial. So they receive between 8 and 9 hours continuous darkness each night. Humane Choice considers 8 hours darkness to be healthy for the hens.

So even though our hens spend plenty of time outdoors we don't notice a significant difference in egg laying during Winter.