My pullets born this summer haven't started laying yet, but I have one older hen who has just started laying again this week after mothering through the autumn, which surprised me because I didn't expect her to start laying again until early spring. She is an aseel breed, which are known to be poor layers, and I don't add light in the coop. It gets light here at around 9am and dark by 4pm and I think she has actually been laying the eggs in the early evening in the dark. On the other hand it has been quite mild weather this past couple of weeks after more severe cold in November, so maybe that has helped? It rarely goes below freezing here anyway so I'm not really worried about frozen eggs. I've been feeding the girls layer pellets with mealworms as treats for extra protein and they have a few hours a day to roam and eat the grass. They seem happy and healthy enough.