When the eggs slow down: molt, daylight, and what is normal in fall
Fewer eggs in late October is usually not a crisis. Oregon State and Michigan State Extension both point to the same normal drivers - a hen's natural production arc, the season's shrinking daylight, and molt - before any health worry.
What a normal laying year looks like
Oregon State Extension lays out the arc: a pullet starts laying at 18 to 20 weeks, peaks at about 35 weeks with a rate above 90 percent - roughly 9 eggs in 10 days - and holds that peak for only about 10 weeks before production slowly declines. A high-producing hen's annual output is more than ten times her body weight, around 265 eggs a year for a commercial White Leghorn, and fewer for most backyard breeds.
OSU's list of what slows or stops laying starts with decreasing day length and also includes disease, broodiness, poor nutrition and stress. And even under ideal conditions, every hen's production eventually slows and stops with age.
Daylight runs the whole cycle
Michigan State University Extension explains the mechanism: the hours of daylight drive a chicken's reproductive cycle. Hens begin laying when daylight reaches about 14 hours per day in early spring, and maximum production comes at 16 hours - a design that times hatching for spring and growth for the warm months.
So when late fall cuts the day short, production dropping off is the system working as built, not the flock failing.
Track the drop, not the guess. PawLine keeps dated notes per bird or pen: egg counts, molt signs, when you changed lighting. A small log tells you whether the slowdown matches the season. Get PawLine on iPhone or Get PawLine on Android.
If you choose to add light
MSU's supplemental lighting guidance is specific. Keep intensity low - just bright enough to read a newspaper at bird level. Apply the light in the morning hours so birds still roost naturally at dusk. Place lights above feeders and waterers and minimize shaded spots in the hen house.
Go gradually: once pullets are past 16 weeks, increase exposure by about one hour per week until you reach the 14 to 16 hour maximum. More is not better; the 14 to 16 hour range is the ceiling, applied without harm only after that age.
When it is not the calendar
If the slowdown does not match the season, revisit OSU's other stimuli. A broody hen stops laying to sit. Poor nutrition and stress both hit production. And disease belongs on the list of possibilities whenever the drop is sudden, steep, or comes with other signs.
This is where a running log pays off: dated notes on egg counts, feed, molt and behavior turn a vague sense that something is off into a timeline you can read - or hand to a vet or Extension educator.
Sources
Sources checked October 22, 2026. Suggested routines and note formats are editorial organizational ideas.
- Why did my chickens stop laying?
Oregon State University Extension - Decreasing daylight and its effect on laying hens
Michigan State University Extension