My girls are now 23 weeks and one has "looked" like she is about to lay for three weeks now. I am thinking the waning light has something to do with this...or am I just being impatient? I think I'm going to break down and put a light in the coop for a couple of hours in the afternoon. The are going in to roost now between 5:30 and 6 and it's only going to get earlier after the time change next week. While my main question is about what light bulb to use for light only, not heat I'd also welcome any other advice on the subject! Thanks!