4 hens are 3 years old and layed eggs all last winter with a heat lamp 10 chickens hatched June 10, 9 hens and one rooster joined the run a few months ago. Heavy molt seems finished. Good quality organic feed on demand. Oyster shells in extra feeder. Most of day in chicken tractor, free range about 2 hours late in day until sundown. About one cup of treats before bedtime to lure them into run, spread out so they don’t fight. Why no eggs?

Hi Marjorie,
Thank you for your question. I've attached a bulletin from Virginia Cooperative Extension for you that outlines various reasons that hens may decrease or stop laying. 
The most common reason this time of year that hens stop laying is due to the decreased length of daylight. To keep production up, even during molt, hens need 14 hours of light. Once the days are shorter than 12 hours of daylight, production can wane or stop completely. It sounds like you provided supplemental light last year, which is likely what kept them laying. 
You can resume supplemental lighting gradually by adding 15-30 minutes of additional lighting per week until you reach 14 hours of daylight. I've attached another bulletin from The University of Maine that outlines various types of light, wattage, etc. 
Please let me know if you have further questions.
Best,
Katie

Katie Ockert
MSU Extension Educator
Community, Food, and Environment Institute
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