Moulting Chickens: What to Expect and How to Support Your Flock

If your chicken is losing feathers this autumn, she is almost certainly moulting. Moulting chickens shed and regrow their full plumage once a year, typically between late summer and early winter, and it is entirely normal. It can look alarming if you have not seen it before, but it is not a sign of illness or distress. Your flock knows what it is doing.

What Is Moulting and Why Does It Happen?

Feathers are not for show. They regulate your hens' body temperature, protect their skin and play a role in everything from dustbathing behaviour to social signalling within the flock. They are also expensive to maintain, biologically speaking, because feathers are made almost entirely of protein and producing a full set of new ones places a real demand on a hen's body.

Moulting is the process by which chickens replace their entire plumage once a year. Old feathers are shed and new ones grow in their place. The trigger is shortening daylight hours. As the days shorten through late summer and into autumn, the change in light signals the hen's body to begin the moult, and it is a built-in biological process, not a problem to fix.

What Is the Difference Between a Hard Moult and a Soft Moult?

Not all moults look the same. Some hens go through what keepers call a hard moult, and others have a soft moult. Knowing which one you are dealing with saves a lot of unnecessary worry.

Hard moult is dramatic. Feathers come out fast, often over a matter of days, and you can end up with a hen that has visible bare patches on her neck, back, chest or wings. The coop floor will be covered in feathers and the hen may look, frankly, terrible. A hard moult can look like something is seriously wrong, especially if you have not seen one before.

Soft moult is gradual. The hen loses feathers slowly over a longer period. You might notice she looks a little tatty or ragged, or that her plumage is not quite as glossy as usual, but there are no dramatic bare patches and no floor covered in feathers. Many soft moults go almost unnoticed.

First-time keepers who contact us are almost always seeing a hard moult and assuming the worst. Bare patches and feathers everywhere are entirely normal and your hens will look better than ever once it is over.

When Does Moulting Happen and How Long Does It Last?

In the UK, the moult typically begins between late August and October. The reducing daylight hours through this period are what trigger it, and a hen that starts moulting in September is right on schedule.

How long the moult lasts depends on the individual bird and the breed. A full moult generally runs for six to twelve weeks, though some hens finish faster and some take a little longer. Heavy laying breeds, including ex-battery hens, ISA Browns and similar commercial hybrids, tend to moult harder and faster than traditional breeds. This is connected to how much energy they have already spent on egg production, and the harder a hen has worked through the year, the more dramatic the moult can be.

If your flock does not all moult at the same time, that is normal too. Some hens will start earlier than others, and you may have one bird who starts looking patchy in August while her flock mates are still glossy and laying well.

Why Do Hens Stop Laying During the Moult?

This is the question most keepers ask first, and the answer is straightforward. Feathers and eggs both require a large amount of protein to produce, and a hen's body cannot do both at full capacity at once. During the moult, the protein that would ordinarily go into egg production is redirected into feather production instead.

Most hens in a hard moult stop laying entirely. This is not something going wrong. It is the hen's body prioritising correctly, and laying will return once the moult is complete and the new feathers are fully grown in.

Depending on when the moult started and how long it lasted, hens usually return to laying in December or early January. Light levels at that time of year are still low, which can also slow the return to lay, so do not be surprised if it takes a few weeks after the moult ends before you start seeing eggs again. Laying will come back.

How Should You Support Your Hens During the Moult?

There is not much management required during a moult, but a few things make a real difference to how quickly your hens come through it.

Increase the protein in their diet. This is the single most useful thing you can do. Standard layers pellets contain around 16% protein, which is fine for maintenance but not enough to support rapid feather regrowth. During the moult, look for a higher-protein feed or supplement your existing feed with dried mealworms, which are naturally high in protein and most hens will eat readily. Browse our Poultry Feed and Treats collection for feed and supplement options.

Avoid handling pin feathers. As new feathers emerge, they appear first as pin feathers: small, quill-like shafts with a blood supply running through them. These are sensitive. If a hen in hard moult reacts badly to being picked up, she is not unwell. Pin feathers are painful to touch, so leave her be until the moult is finished and the new feathers have fully opened out.

Keep the coop clean and dry. A hen in moult is putting a lot of energy into feather production and her immune resilience can be lower than usual. Good hygiene in the coop matters more during this period. Fresh bedding, a clean drinker and a dry environment all help. For health and hygiene supplies, see our Chicken Cleaning and Health collection.

Do not introduce new birds. Adding new hens to the flock during a moult adds stress at a time when your existing birds are already under physical demand. Wait until the moult is complete before making any changes to the flock.

What Should You Avoid During the Moult?

A few common mistakes are worth naming directly.

Do not pick up a hen in hard moult unnecessarily. Pin feathers are sensitive and handling causes real discomfort. If you need to check on a hen's condition, observe from a distance rather than catching her. If you do need to handle her, be especially gentle and avoid touching the areas where new feathers are emerging.

Do not stop the high-protein diet as soon as feathers start returning. New feathers appearing is a sign the moult is progressing, not that it is finished. Continue the higher-protein feed until the moult is fully complete and the new plumage is well established. Cutting back too early can slow the final stages of regrowth.

Do not assume moulting is feather pecking. These are different things and it is worth being able to tell them apart. During a moult, feather loss tends to happen across the whole body in a fairly even pattern, starting at the head and neck and working down toward the tail. Feather pecking by flock mates produces a different pattern: loss concentrated in specific areas, often the back near the tail, with feathers that look broken or pulled rather than shed cleanly. If you suspect feather pecking rather than moulting, observe the flock directly to see who is doing it.

When Should You Be Concerned About a Moulting Hen?

Most of what you see during a moult is entirely normal and needs no intervention. There are a few situations where it is worth looking more closely.

If only one hen is losing feathers while the rest are not moulting, it may not be a moult at all. Consider whether it could be feather pecking from flock mates, or whether there is another cause to investigate.

If the feather loss is concentrated on the head and neck only, this can be a sign of feather pecking rather than moulting. Hens cannot peck their own heads, so bald or sparse patches there are usually caused by other birds in the flock.

If the skin looks red, sore or irritated beneath the bare patches, check for external parasites. Red mite can cause skin irritation and feather condition problems that are sometimes mistaken for a moult. Our guide to red mite in chickens covers how to identify and treat an infestation.

If you are seeing any of these signs alongside what you think is a moult, take a closer look at flock dynamics and check the coop for mites before assuming everything is on track.

Frequently Asked Questions

Why is my chicken losing feathers but not the others?

If one hen is losing feathers while the rest of the flock is not moulting, it may not be a natural moult. The most likely explanation is feather pecking from flock mates. Check for broken or pulled feathers rather than clean feather loss, and observe the flock to see whether any bird is pecking at the affected hen. It is also worth checking for external parasites such as mites and lice, which can cause feather condition to deteriorate. If other hens begin moulting over the following weeks, your original bird may simply have started earlier than the rest.

Do chickens lay eggs during moulting?

Most hens stop laying during a hard moult. Feather production and egg production both require significant protein, and the body redirects resources into regrowing feathers. A hen in a soft moult may continue laying at a reduced rate, but a hen going through a hard moult will typically stop altogether. Laying usually resumes once the new plumage is fully grown, which in a typical UK autumn moult means December or January.

How long does a chicken moult last?

Most moults run for six to twelve weeks. The exact length depends on the individual bird and the breed. Heavy laying breeds such as ISA Browns and ex-battery hens tend to moult hard and fast. Traditional or dual-purpose breeds may take longer but often moult more gradually. If your hen started moulting in September, expect her to be through it by November or December. Some individual birds take a little longer than others, and that is normal.

What should I feed chickens when they are moulting?

The priority during a moult is protein. Standard layers pellets contain around 16% protein, which is not quite enough to support fast feather regrowth. During the moult, you can switch to a higher-protein feed, or supplement your regular feed with dried mealworms, which are an easy and practical way to increase protein intake without changing your whole feeding routine. Avoid filling up on low-protein treats such as mixed corn during this period, as these displace the more nutritious feed. For feed and treat options, see our What do Chickens Eat guide or browse our Poultry Feed and Treats collection directly.

The moult places real demands on your hens, and their diet is the area where you can make the biggest practical difference. Our Poultry Feed and Treats collection includes higher-protein feed options and dried mealworms, which are one of the simplest ways to give your flock the extra protein they need to grow new feathers quickly and come through the moult in good condition.