Laying quail in Winter/aviary

[AQuailTale]

Building an aviary for my flock of 20 Quail. Thinking of using poly sheets. Any tips/input from folks experienced/successful in laying birds in winter? I have solar lighting for the hours needed for laying through the winter, plenty of space, but am looking for input before I start the actual build. Do they need some kind of added heat source? Problems you've run into? Thank you in advance

 

[sourland]

For me one concern would be the likelihood/possibility of eggs freezing.

 

[AQuailTale]

For me one concern would be the likelihood/possibility of eggs freezing.

Maybe a little heat source to keep it toasty, but not too warm?