I have 14 hens and I 'm only getting 1 to 3 eggs a day. I have tried lights coming on at 3:30 AM and going off at 8:00 AM but it hasn't worked. Most of my Americanas (8) are less than 2 years old and my Sex Links are about 3 years. I live in Windsor, California and our lowest early morning temperatures have been around 34 degrees F. My ladies go inside their coop in my barn at dusk. Any suggestions?