Three BRs that I got just before 4th of July so at least 23 weeks old. One has had a nice bright red comb and waddle for a while now. Another just got hers and the third on her way. So I check with great anticipation every day. I am hoping the the winter sun or lack of won't affect them starting. I do have artificial light going on around 3:30am. Plus I built a new coop and moved 3 older hens into there and no eggs from them either. I know the move probably stopped them. I am hoping once one starts everyone will get going. Do you think it works that way?