Hi, i have 2 RIR and 3 Leghorn hens all started laying in August as well. Their eggs are all a medium size and i have been wondering when they will be bigger. Being in Arizona other people i know said their hens stopped laying when it was hot even though they were the same age, mine are very consistent and i get 5 eggs a day from 5 chickens even when it was over 100 degrees. They have a very large pen with lots of shade and house and i have my sprinklers set to go off every 2 hours for 1 minute during the hot times to keep them cool. Now that the temps have dropped i thought the eggs may get bigger but still the same size. I feed them garden mixed vegies with red cabbage, mixed seed with peanuts, sunflower seeds, pumpkin seeds, and some other nuts, and oatmeal mixed with cottage cheese every morning, and of course they have a never ending supply of purina layena and they get live meal worms in the evening. I scrub their waterers every morning and refill with fresh and keep their pen super clean with morning cleanings so it always smell like fresh hay in the hen house and no smell in the pen. Even with a large pen 8 x 16 feet and large hen house 6 x 8 i let them out to forage for an hour in the morning and an hour in the evening. I would think they would be getting plenty of nutritious food and excercise as they are super busy all the time and wonderfully beautiful that the eggs would begin to get larger by now.
