We started with 10 pullets hatched in April. They were all laying well before 20 weeks. 3 RIR, 3 red sex link, 3 black sex link, 1 blk australorp (she snuck in!). We have collected 10 eggs per day (1 each), from July until this week. Anywhere from 8-10 per day now. We do have one rooster. In southeast PA, the weather has been steadily unsteady (20s - 50s), light at 7:30, dark at 4:30, no supplemental light. Like AART said, eggs are seasonal, so we look forward to seeing how this changes, and respect those little chickens for all they do, on their own schedule. I should also mention our chickens are fed whole grains from Scratch and Peck, free range a little daily (most all day in summer, a few hours a day now that the leaves are gone), get tons of kale, apples, shelled sunflower seeds, winter squash, scrambled eggs, dried grubs and Honest Worm meal worms -- or some variation of those things each day. They also have ample enclosed space, with access to dust baths. Overall, they are the shiniest, healthiest looking chickens!