“Most people who keep a backyard flock do so for the delicious, farm-fresh eggs. It’s always concerning when the hens suddenly stop laying. In addition to the inconvenience when there suddenly aren’t eggs for breakfast, there’s the anxiety that perhaps something is really wrong with them. In fact, a sudden decline in egg production can signal a health concern. For this reason, it’s a good idea to keep track of your chickens’ laying habits. That way, you will know as soon as possible if something is wrong.” Read more in the link below:
6 Common Reasons Why Your Hens Stop Laying – Home and Gardening Ideas
Broodiness, Nutrition, Old age, Daylight, Molting, and Disease are all reasons that may cause your chickens to lay fewer eggs. The link above discusses each situation and what should be done in each case