Why are my chickens losing feathers but not moulting? | arlo.® Atlas
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Overview
If your chickens are losing feathers but it doesn't look like a normal moult, the most common reasons are lice, feather pecking, or rubbing caused by irritation. Sometimes the feathers are only broken or pulled out, so it can look worse than it is. Checking the birds, their housing, and the feather loss pattern usually gives you a good clue.
Things To Check
1. Look at where the feathers are missing. Feather loss around the vent, under the wings, or along the back can point to different causes.
2. Check for small moving insects, white eggs around the feather shafts, and dusty-looking debris at the base of feathers.
3. Watch for peck marks, broken feathers, or one bird being singled out by the rest of the flock.
4. Feel for scabs, sore skin, redness, or any areas that seem hot or tender.
5. Check the coop, perches, nesting areas, and dusty corners for signs of poor hygiene or parasite build-up.
6. Think about any recent changes, such as a new bird, overcrowding, stress, or changes in feed or routine.
7. Make sure there is enough space, easy access to feed and water, and places for lower-ranking birds to avoid bullying.
Common Causes
Lice are a common cause, especially if you can see tiny insects or eggs around the feathers. Chickens can also lose feathers through feather pecking, either from boredom, stress, crowding, or a bird being picked on.
Sometimes feathers are rubbed off by housing, perches, nest boxes, or repeated scratching and preening. Less commonly, skin irritation, mites, or another health issue may be involved, especially if the skin looks sore or the bird seems off colour.
What To Do
Start by separating what is normal moulting from active feather damage. Take a close look at the skin and feathers, and keep an eye on which birds are affected and how quickly it is changing.
Improve coop hygiene, remove soiled bedding, and check all corners, perches, and nesting areas carefully. If feather pecking seems likely, reduce stress where you can by giving the flock more space, enrichment, and a steady routine.
If lice are suspected, it's sensible to manage the environment thoroughly and keep monitoring the flock closely, because these problems can spread through a group. If the feather loss is getting worse, the skin looks inflamed, or the bird seems unwell, speak to a vet for advice.
Products That May Help
Keeping the coop and flock area clean can be a useful part of day-to-day poultry management when you're trying to work out why feathers are being lost and the birds are not moulting.
Related Questions
Could feather loss in chickens be caused by mites as well as lice?
How can I tell the difference between moulting and feather pecking?
What should I check in the coop if my chickens are losing feathers?
Atlas is here to support owners with practical, easy-to-understand guidance. It is not a substitute for professional veterinary advice. If you're concerned about your animal's health, symptoms worsen, or something doesn't feel right, contact your vet.