My girls are 3 1/2 years old and stopped laying, I want to say 2 months ago - maybe less. I know it is winter, and they are molten, but with it being that long, I figured they were done laying. Since it is colder, we've been putting the red heat lamp on from 6p - 6a. I just got another egg - normal? Not normal? Also, i don't want to overwork them, and I thought the red lamp is just for heat, they won't be stimulated, but I'm thinking that's not right??