Why Did My Chickens Stop Laying Eggs?

You go out to the nest boxes, lift the lids, and find nothing. Again. If your hens were laying reliably last month and have suddenly gone quiet, you're not alone. A sudden drop in egg production is one of the most common puzzles backyard keepers face, and the good news is that most causes are fixable once you know what to look for.

Light: The Single Biggest Driver of Laying

Hens need roughly 14 to 16 hours of light per day to keep their laying cycle running. This is why production dips so predictably in fall and winter as days shorten. The pineal gland in a hen's eye registers light and triggers the hormonal cascade that leads to ovulation, so when the signal drops, laying slows or stops entirely.

What you can do

Adding supplemental light in the coop is the most reliable fix. A single low-wattage LED bulb on a timer can extend the "day" by a few hours in the morning. A few things worth knowing:

• Give hens at least 8 weeks on supplemental lighting before expecting a full return to production.
• Keep the light consistent. Erratic schedules are almost as bad as no light at all.
• Abrupt darkness (power outage, blown bulb) can trigger a molt and a longer laying pause.

Younger hens (pullets under 60 weeks) are more resilient to light changes than older birds.

Molting: The Annual Reset

Once a year, typically in late summer or fall, hens redirect their protein budget from egg production to feather regrowth. A hard molt can shut laying down completely for 8 to 16 weeks. You'll notice feathers scattered around the coop, bare patches on necks and backs, and hens that look a little ragged.

The molt is completely normal. Trying to force laying through a molt with extra light or high-energy treats can stress the birds and produce thin-shelled eggs. The better move is to bump protein — switching to a 20% protein feed temporarily helps feathers come in faster. Once the new plumage is in, production resumes on its own.

If you want to better understand the full laying timeline from pullet to mature hen, when chickens start laying eggs covers the early stages in detail.

Stress, Predator Pressure, and Flock Disruption

Chickens are creatures of habit. Any significant disruption can cause hens to pause laying for days or weeks:

• A predator attack (even an unsuccessful one at night) leaves the flock on high alert.
• Moving the coop, adding or removing birds, or integrating a new rooster.
• Extreme heat (above 90°F) or cold snaps below freezing.
• A change in feed brand or a gap in fresh water access.

The stress response redirects energy away from reproduction. Identify what changed, address it, and give the flock time to settle. In most cases, laying resumes within two to four weeks once conditions stabilize.

Overcrowding stress

Space matters more than most keepers realize. The general rule is 4 square feet per bird inside the coop and 10 square feet per bird in the run. Cramped quarters increase pecking, competition at feeders and waterers, and general anxiety. If your flock has grown but the space hasn't, that's worth fixing before anything else.

Nutritional Gaps

Egg production is metabolically expensive. A hen laying at peak deposits about 2 grams of calcium into each shell daily. If the diet doesn't supply enough calcium, phosphorus, and protein, the body simply stops producing eggs rather than deplete its own reserves.

Nutrient	Why it matters	Sign of deficiency
Calcium (3.5–4.5% of diet)	Shell formation	Thin or soft shells before laying stops
Protein (16–18% of diet)	Egg albumen, feather upkeep	Slow feather regrowth, low egg weight
Vitamin D3	Calcium absorption	Shell quality problems even with adequate Ca
Water	Eggs are ~74% water	Even brief dehydration cuts production fast

Free-choice oyster shell alongside a quality layer feed handles the calcium side for most flocks. Check that your feed is actually a layer formula (not a grower or flock raiser with no added calcium) and that it hasn't passed its expiration date. Stale feed loses nutritional potency.

For more targeted advice on feeding strategies that support consistent production, how to get more eggs from your hens goes deeper into nutrition and management tactics.

Age and the Natural Decline

Hens hit their peak production in their first and second laying years. By year three or four, output drops noticeably. By year five, many hens lay only occasionally, though some breeds (Australorps, Leghorns, certain production Reds) hold up longer than others.

This isn't a problem to solve so much as a reality to plan around. If your flock average is getting older, adding pullets is the most reliable way to maintain basket counts. A mixed-age flock usually keeps production more even through the year than a flock of same-age birds that all molt and pause simultaneously.

Hidden Nests and Egg Eaters

Before assuming a laying problem, rule out two sneaky culprits.

Hidden nests. Free-range birds or hens with access to shrubs, deep litter, or equipment often find a secret spot they prefer over the nest boxes. A quick search of the coop perimeter, under raised structures, and in dense vegetation sometimes turns up a stash of two or three weeks' worth of eggs.

Egg eating. Once a hen figures out that eggs are edible (usually after accidentally cracking one), the habit spreads fast. Signs: nest boxes that always seem empty, egg yolk on beaks or bedding, shells with no contents. Filling nest boxes so they're darker, using ceramic dummy eggs, and collecting eggs several times a day can break the cycle. Persistent cases sometimes require isolating the culprit.

Health Issues to Rule Out

If none of the above explains the pause, illness may be the cause. Infectious bronchitis, egg drop syndrome, Newcastle disease, and internal laying (where the egg material deposits inside the body instead of passing out normally) can all halt production. Mites and lice cause enough chronic stress and blood loss to suppress laying without any other obvious symptoms.

Examine birds closely. Check under wing feathers and around the vent for mites. Watch for watery eyes, nasal discharge, labored breathing, or lethargy. A hen that sits hunched, has a swollen abdomen, or seems in pain needs a poultry veterinarian, not a home remedy. These symptoms can indicate serious infections or reproductive disorders that require proper diagnosis.

Your local agricultural extension office is also a good resource, especially if multiple birds are affected at once. A sudden flock-wide drop is more likely a management or environmental issue; if birds are also showing clinical signs, assume infectious disease until proven otherwise.

Frequently Asked Questions

How long does it take for hens to start laying again after a molt?

A hard molt typically keeps hens off lay for 8 to 16 weeks. Younger hens and those on a high-protein diet (18 to 20%) tend to come back faster. Once the new feathers are fully in, laying usually resumes within two to three weeks.

Can stress really stop egg production completely?

Yes. A significant stressor (predator attack, extreme weather, flock disruption) can shut down laying entirely for one to four weeks. Hens have a limited energy budget and reproductive activity is the first thing the body deprioritizes under pressure.

My hen laid every day for months and now nothing. Is she sick?

Not necessarily. A sudden stop in an otherwise healthy bird is most often caused by the onset of molt, a light change, or a stressor you may not have noticed. Look for feather loss, check the coop lighting, and think through any recent changes. If she seems lethargic, is losing weight, has a distended abdomen, or shows respiratory symptoms, have her seen by a vet.

Does the breed affect how likely hens are to stop laying?

Yes, significantly. Production breeds (White Leghorns, commercial-type Reds) are bred to push through seasonal light changes and lay through their first two or three years with minimal breaks. Heritage and dual-purpose breeds (Orpingtons, Wyandottes, Dominiques) are more responsive to environmental cues and more likely to take seasonal pauses.

My hens are laying, but egg numbers dropped by half. What causes a partial drop?

A partial drop rather than a complete stop usually points to a gradual cause: flock aging, mild nutritional gaps, slowly decreasing day length, or low-grade stress. Also check whether one or two hens have stopped entirely and the rest are fine. A single bird pausing (molt, laying break, health issue) looks like a flock-wide partial drop when you're watching the basket count. Marking eggs from individual hens for a week or two can clarify who is and isn't contributing.

Once your hens are back on track, proper handling makes the most of every egg. How to collect and store fresh eggs safely covers everything from timing your daily collection to refrigeration decisions.