Last updated: September 2026
Quick answer: Molting is the annual replacement of feathers. Most hens start their first adult molt at around 18 months, usually in autumn as daylight shortens, and it takes 8 to 12 weeks. Laying stops completely during it because feathers are 85% protein. Move the flock to 20-22% protein feed, cut the scratch grain, and leave them alone.
What molting actually is
Feathers are dead structures. They wear out, break and lose their insulating value, and a chicken cannot repair them, so once a year she throws the whole coat away and grows a new one.
The trigger is shortening daylight. As days pull in after the summer solstice, the drop in light suppresses reproductive hormones and the follicles release the old feathers. This is why molt and the autumn laying slump arrive together, and why people so often blame one for the other.
The cost is the part that matters to you. Feathers are roughly 85% protein, and a hen has around 8,000 of them. Rebuilding that in ten weeks is one of the most demanding things her body ever does, and it competes directly with egg production. She cannot do both, so she stops laying. That is not a fault, and it is not something to fix.
When chickens molt
Birds molt several times before the annual adult cycle even begins, which confuses new keepers who think something has gone wrong.
| Molt | Age | What happens |
|---|---|---|
| First juvenile | 6-8 days | Chick down replaced by first true feathers |
| Second juvenile | 7-12 weeks | Full juvenile plumage comes in |
| Pre-lay | 16-22 weeks | Adult plumage completes before point of lay |
| First adult molt | ~18 months | Full annual molt, laying stops |
| Annual molt | Every autumn after | Repeats each year, often faster with age |
The timing catches people out because a pullet raised in spring lays straight through her first winter without molting, then molts the following autumn at around 18 months. Her second winter is the one with no eggs. If you raised your birds from chicks this spring using our brooder guide, expect that gap in autumn next year, not this one.
Molt normally runs September through November in the northern hemisphere. Out-of-season molts happen too, and they are almost always stress-triggered: a predator scare, a house move, running out of water, or a sudden temperature swing.
The order feathers drop
A normal molt follows a predictable sequence. If your bird is losing feathers in a completely different pattern, it is worth a second look.
- Head and neck first, which is why molting hens look scruffiest around the face
- Breast and body
- Wings, primaries dropping from the inside outwards
- Tail last
Wing primaries are the reliable progress indicator. A hen replaces her ten primary flight feathers in order, and each one takes about two weeks to regrow. Count how many are new and you know roughly how far along she is. This is also how the old poultry books judged a hen’s quality without watching her for a year.
Hard molt vs soft molt
Two very different-looking versions of the same process.
| Hard molt | Soft molt | |
|---|---|---|
| Appearance | Dramatic, bald patches, feathers everywhere | Gradual, easy to miss entirely |
| Duration | 6-8 weeks | 10-16 weeks |
| Laying pause | Shorter but total | Longer, sometimes partial |
| Typical bird | High-output layer | Older hen or heritage breed |
Counterintuitively, the hen who looks worst recovers fastest. A hard molt gets the whole miserable business over with in six weeks. A soft molt drags on for four months, and those hens often lay almost nothing across the entire period.
Signs your hen is molting
- Feathers everywhere in the coop, run and nest boxes
- Bald or thin patches, usually starting at the head and neck
- Pin feathers, waxy blue-grey spikes pushing through the skin
- Laying stops, completely and often abruptly
- Comb pales and shrinks as blood is diverted from reproduction
- She goes quiet and antisocial, hangs back, avoids being touched
- Appetite may rise even though she looks unwell
Pin feathers are worth understanding, because they explain the behaviour change. Each emerging feather has a live blood supply inside a keratin sheath, and it genuinely hurts if knocked. A molting hen who suddenly hates being picked up is not being difficult, she is sore.
Molt, mites or illness?
Feather loss has three common causes and they need completely different responses. This is the table to check before you buy anything.
| Clue | Molt | Mites or lice | Feather picking |
|---|---|---|---|
| Time of year | Autumn | Any, worse in summer | Any |
| Pin feathers present | Yes | No | No |
| Where feathers are lost | Head and neck first | Vent, under wings, tail base | Vent, back, tail only |
| Skin appearance | Clean, healthy | Red, scabby, grey specks at feather base | Raw, sometimes bleeding |
| Whole flock affected | Usually, staggered | Usually, all at once | One or two victims |
| Bird’s condition | Alert, eating well | Pale comb, losing weight, restless at night | Normal |
| Action | Raise protein, wait | Treat the birds and the coop | Add space and enrichment |
The quickest single check is to go out after dark with a torch and look at the vent and the base of the tail feathers. Mites are active at night and cluster there. If the skin is clean and you can see waxy pin feathers coming through, it is a molt and there is nothing to treat. The full identification and treatment method is in chicken mites, and clinical detail on external parasites is in the Merck Veterinary Manual.
How to help her through it
1. Raise the protein. This is the whole game. Switch from 16-18% layer feed to a 20-22% ration, a grower feed, or a game bird feed for the duration. Once the new feathers are grown, go back to layer.
| Feed | Protein | Use during molt? |
|---|---|---|
| Game bird / flock raiser | 20-22% | Best choice |
| Grower feed | 18-20% | Good |
| Layer feed | 16-18% | Adequate but slow |
| Scratch grain | 8-9% | No, actively harmful now |
2. Cut the scratch and the treats. Scratch grain at 8% protein dilutes exactly the nutrient she needs most. This is the single most common mistake, and it is usually made out of kindness. Keep treats under 10% of intake, as covered in what chickens eat.
3. Use the right high-protein extras. Scrambled or cooked eggs, mealworms, black oil sunflower seeds, cooked meat scraps, tuna in spring water. Check anything new against what not to feed chickens first.
4. Keep water clean and constant. Feather growth needs it, and dehydration stalls a molt fast.
5. Reduce stress. No new birds, no coop moves, no rearranging. A molting flock has almost no spare capacity, and the pecking order is already unsettled because bald birds get picked on. Hold off on introducing new chickens until everyone is feathered.
6. Watch for cold. A hen halfway through a hard molt has lost much of her insulation. If the weather turns while she is bare, she needs a genuinely draft-free coop, which is covered in keeping chickens warm in winter.
What not to do
- Do not handle her. Pin feathers bleed and it hurts. Skip the health checks unless something is actually wrong.
- Do not add supplemental light to force laying. Overriding a molt produces poor feather quality and a shorter productive life. It shows up directly in how long chickens live.
- Do not treat for mites without evidence. Dusting a bird with open pin feathers is unpleasant and pointless if there are no mites.
- Do not cull a hen for going off lay in autumn. She will come back, usually laying larger and better-shelled eggs than before.
- Do not introduce new birds now. Wait until the flock is feathered.
Why late molters are your best layers
An old poultry-keeper’s trick worth knowing: the hens that molt latest and fastest are your best producers.
A high-output hen keeps laying deep into autumn, delays her molt as long as possible, then rips through it in six weeks. A poor layer stops early, molts slowly and takes four months. If you are deciding which birds to keep, note who is still laying in October and who went bald in August.
Breed matters here too. Heavy heritage breeds like the Buff Orpington tend towards slower, softer molts, while hybrid production layers often molt hard and briefly. Compare production characteristics across the best egg-laying breeds if you are building a flock for consistent supply.
One practical consequence: stagger the ages of your flock. If every bird is the same age, every bird molts at once and you get no eggs for two months. Adding a few pullets every other year keeps something laying year-round. Research-backed flock management guidance is available free from Poultry Extension.
Frequently asked questions
How long does chicken molting last?
Typically 8 to 12 weeks. A hard molt can finish in 6 to 8 weeks, while a soft molt in an older or heritage hen may drag on for 10 to 16 weeks.
Do chickens stop laying when molting?
Yes, almost always completely. Feathers are about 85% protein and the body cannot fund feather regrowth and egg production at the same time. Laying resumes once the new coat is grown.
At what age do chickens first molt?
The first full adult molt happens at around 18 months. Chickens go through several juvenile molts before that, at roughly 6-8 days, 7-12 weeks and 16-22 weeks.
What should I feed chickens during a molt?
A 20-22% protein feed such as game bird or flock raiser ration. Cut scratch grain, which is only 8-9% protein and works against feather regrowth. Return to layer feed once feathering is complete.
Is my chicken molting or sick?
A molting hen has waxy pin feathers coming through clean skin, loses feathers from the head and neck first, and stays alert and hungry. Red scabby skin, feather loss around the vent, a pale comb and weight loss point to mites or illness instead.
Can chickens molt in winter or spring?
Yes, though it is not the norm. Out-of-season molts are usually triggered by stress such as a predator scare, a move, a water outage or a sudden temperature swing.
Should I put a jumper or coat on a molting chicken?
No. Chicken jumpers rub against emerging pin feathers, which is painful, and they interfere with dust bathing and preening. A dry, draft-free coop is the correct answer.
Why is my molting chicken being bullied?
Bare skin and blood-filled pin feathers attract pecking. Give the flock more space and something to peck at, and separate any bird that is being drawn blood on. Space requirements are in how much space chickens need.
If your hens have gone off lay and you are not sure a molt explains it, work through why chickens stop laying eggs, which covers all nine common causes.