Why Is My Chicken Not Laying Eggs? The 8 Real Reasons

Vet-reviewed · Updated September 2026 · 8-minute read
Why a chicken stops laying: check daylight hours, look for molt, consider age and nutrition, and rule out illness, beside a golden hen
The short version. An empty nest box is usually not an emergency. In order of likelihood, hens stop laying because of: (1) short daylight (they need 14–16 hours), (2) molt (the annual fall feather change), (3) age (production declines after 2–3 years), (4) stress, (5) a nutrition gap (protein/calcium), (6) broodiness, (7) a hidden nest you haven't found, and (8) illness or parasites. Rule out daylight and molt first, then nutrition and stress, and treat illness as the exception — usually flagged by other signs like a pale comb or lethargy.

If you walked out to a quiet nest box and felt a jolt of worry, take a breath: an empty box rarely means something is wrong. Far more often your hens are responding to the season, their own bodies, or a small change in their world. This guide walks the eight usual suspects in order, with how to tell which one you're dealing with — and it's honest about the one case that does warrant concern.

1. Short daylight (the most common cause)

Egg-laying is driven by light. A hen's pituitary gland responds to day length, and she needs roughly 14 to 16 hours of light per day to sustain strong production.4 As days shorten in fall and winter, laying naturally slows or stops — and it's the darkness, not the cold, that does it.5 If your hens stopped around autumn, this is almost certainly why.

What to do. Either accept a natural winter rest, or add supplemental light on a timer to reach 14–16 hours total. One caveat from the vets: don't add light during a molt — let their bodies finish that process first.2 Young pullets in their first winter often lay right through it, because they need less light.1

2. Molt (the fall feather change)

Once a year, usually starting around 18 months of age and triggered by shortening days, hens shed old feathers and grow new ones.1 Regrowing feathers takes enormous protein and energy, so the body redirects it away from egg production — a heavy molt can shut laying down entirely for 8 to 16 weeks.2 You'll know it's a molt because the coop looks like a pillow exploded and the birds look patchy and scruffy. It's completely normal.

What to do: switch to a higher-protein feed (18–20%) to support regrowth, keep stress low, and wait it out. Laying resumes once new plumage is in.2

3. Age

Hens lay best in their first 2 years, and production naturally declines after about 2 to 3 years.1 Importantly, she doesn't stop because she "runs out of eggs" — a hen has plenty of ova for life; it's the aging of her body and the cumulative stress of laying that slows her down.1 Older hens lay fewer (often larger) eggs and take longer seasonal breaks.

4. Stress

One of the most overlooked causes. A predator scare, a move to a new coop, new flock members disrupting the pecking order, extreme heat or cold, overcrowding, or even a change in routine can halt laying for days to weeks. Hens are sensitive to disruption. Production usually returns once the stressor is gone and they settle.

5. Nutrition gaps

Laying is metabolically expensive, and a diet short on protein or calcium will cut it. The foundation is a complete layer feed (~16–18% protein) plus free-choice calcium (oyster shell in a separate dish). A common self-inflicted problem: too much scratch grain and treats, which fill hens up and dilute the balanced ration they need. Treats should be a small fraction of the diet.

6. Broodiness

A broody hen has decided to hatch eggs. She'll sit tight in the nest, puff up and growl when you approach, and stop laying while she incubates (even with no fertile eggs under her). It's hormonal and normal. If you don't want chicks, you can gently break broodiness; otherwise she'll typically snap out of it in a few weeks and resume laying.

7. A hidden nest

Before concluding a hen has "stopped," rule this out — it's embarrassingly common. Free-ranging hens love to make secret nests in hedges, under bushes, behind equipment, or in a quiet shed corner. Confine the flock to the coop and run for a few days; if eggs reappear, she was laying all along, just somewhere you hadn't found.

8. Illness or parasites (the exception to watch)

This is the one that warrants concern — but it usually comes with other signs, not alone. Internal and external parasites (the northern fowl mite is a classic culprit) drain a hen and lower production, and various diseases can hit egg numbers fast.6 The tell is a laying drop plus other symptoms: lethargy, a pale or shrunken comb, weight loss, diarrhea, or visible mites and lice.

When to look closer. A hen that stops laying but is otherwise bright, active, and eating is almost always dealing with a normal cause (daylight, molt, age). A hen that stops laying and looks unwell — hunched, pale-combed, lethargic, losing weight — should be examined, and seen by a vet if signs persist or worsen. Egg-yolk peritonitis, an impacted or egg-bound condition, and heavy parasite loads all need real attention.

How to figure out which one it is

Frequently asked questions

Why did my chickens suddenly stop laying?

Most often short daylight, molt, age, stress, a nutrition gap, broodiness, illness/parasites, or a hidden nest. A whole-flock stop usually means daylight, a stressor, or molt; a single hen stopping leans toward age, broodiness, or health.

How much daylight do chickens need to lay?

About 14 to 16 hours. Laying is triggered by day length, so it slows in fall and winter. You can add timed supplemental light, or give a natural winter rest.

Do chickens stop laying when they molt?

Yes — molt redirects protein into feathers and can pause laying 8 to 16 weeks. Higher-protein feed helps; laying resumes once feathers are back.

At what age do chickens stop laying?

Production declines after 2 to 3 years and tapers with age. She doesn't run out of eggs; her body simply slows. Older hens lay fewer, larger eggs.

Can stress make chickens stop laying?

Yes — scares, moves, new birds, temperature extremes, or routine changes can halt laying for days to weeks. It resumes once they settle.

What should I feed to help them lay?

Complete layer feed (~16–18% protein) plus free-choice oyster shell; higher protein during molt. Go easy on scratch and treats. No feed overrides daylight, molt, or age.

Could she be hiding her eggs?

Very possibly. Confine free-rangers for a few days; if eggs reappear, she had a secret nest.

Will chickens lay in winter?

Many slow or stop due to short days (not cold). Pullets often lay through their first winter. Supplemental light to 14–16 hours maintains production.

How we reviewed this article

This guide draws on university extension poultry resources, feed-science guidance, and licensed veterinarians rather than guesswork, and it's careful to separate the normal, common causes from the minority of cases that signal illness. Every load-bearing claim is numbered to a source below. This page is scheduled for review by a licensed veterinarian; the reviewer's name and date will appear here once complete.

Sources & references

  1. Grubbly Farms / feed-science guidance. Why Have My Chickens Stopped Laying Eggs? Daylight, molt timing (~18 mo, fall), age decline, pullet light needs. grubblyfarms.com
  2. Dr. Rosie DVM. Why Did My Chickens Stop Laying Eggs? Molt as #1 cause, 8–16 week pause, 18–20% protein, don't force light during molt. drrosiedvm.com
  3. Homestead and Chill. Molting Chickens 101. Molt timing/appearance and distinguishing it from other feather loss (mites, bullying, broody plucking). homesteadandchill.com
  4. Steinhauser's / extension guidance. Why Chickens Stop Laying Eggs. 16-hour daylight minimum; light, stress, nutrition, molt, age. steinhausers.com
  5. Purina Mills. Mystery Solved: Why Did My Chickens Stop Laying Eggs. Photoperiod, 24–26 hr lay cycle, molt nutrition. purinamills.com
  6. Happy Cluck / veterinary-reviewed guidance. 8 Reasons Chickens Stop Laying. Parasites (northern fowl mite) and illness signs accompanying a laying drop. happycluck.com

Sources current as of September 2026. Educational content, not a substitute for veterinary care.