
A puffed-up chicken with its feathers fluffed out is usually a sign of illness or disease. This could be coccidiosis, worms, or an array of other nonspecific symptoms called sick bird syndrome. Other symptoms that may accompany the puffed-up feathers include lethargy, lack of interest in food or water, and standing still. It is recommended to seek veterinary advice and monitor the chicken closely, as further tests such as lab work, X-rays, and physical exams may be required to determine the exact cause of the illness.
| Characteristics | Values |
|---|---|
| Behaviour | Standing still, lethargic, sleepy |
| Broody, wants to sit on eggs | |
| Dominance | |
| Fluffing feathers to conserve heat | |
| Symptoms | Sick bird syndrome |
| Coccidiosis | |
| Worms | |
| Dehydration | |
| Bacterial infection | |
| Bumblefoot lesions | |
| Broken bone | |
| Treatment | Epsom salt bath |
| Antibiotics (tetracycline, Duramycin 10, Corid) | |
| Deworming medication (Safe-Guard, Valbazen) |
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What You'll Learn

Fluffing feathers can conserve heat
A chicken that is puffed up may be trying to conserve heat. This is known as "fluffing". This behaviour can be indicative of a variety of illnesses or health issues. For example, one chicken owner observed that their chicken was "
Another possible explanation for a chicken puffing up its feathers is that it is broody. One chicken owner observed that their chicken was "puffed up" with "her wings spread out, she basically looks like a strutting turkey", and another chicken owner confirmed that their chicken does the same thing when she is broody. The first owner also noted that it was "about 20 degrees outside", suggesting that the chicken was trying to conserve heat.
In some cases, a chicken that is puffed up may be experiencing a more serious health issue. For example, one chicken owner described their chicken as being puffed up, lethargic, and not eating. The veterinarian they consulted recommended starting a round of Corid liquid or powder in the chicken's water, as it was possible that the chicken was overrun with Coccidiosis, a common parasite in poultry.
It is important for chicken owners to monitor their chickens closely and seek veterinary advice if they are concerned about their bird's health. In some cases, simple remedies such as an Epsom salt bath and monitoring the chicken's water intake can help. In other cases, more serious intervention may be required, such as tube-feeding the chicken to keep it hydrated or administering medication.
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It could be a sign of illness
A puffed-up chicken could be a sign of illness. If a chicken is puffed up, lethargic, and standing still, it could be a sign of illness. In some cases, the chicken may also exhibit a swollen or bloated belly.
One possible cause of a chicken puffing up is coccidiosis, an infection caused by a parasite. Coccidiosis can lead to a swollen crop, watery faeces, and loss of appetite. Treatment for coccidiosis typically involves administering medications such as Corid, oxytetracycline, or chlortetracycline. It is important to provide fresh water and ensure the chicken remains hydrated during treatment.
Another potential cause of a chicken puffing up is worms. Worms can affect chickens and can be treated with deworming medications such as Safe Guard or Valbazen. It is recommended to worm chickens at least once or twice a year to prevent and control worm infections.
In some cases, a chicken may puff up due to respiratory illness. Respiratory illnesses in chickens can be treated with medications such as Duramycin 10. However, it is important to consult with a veterinarian to obtain an accurate diagnosis and appropriate treatment plan.
Additionally, some chickens may experience lethargy and loss of appetite due to heat stress. It is important to provide shade, ventilation, and access to water to help chickens regulate their body temperature in hot weather.
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May indicate worms or coccidiosis
A puffed-up chicken may indicate worms or coccidiosis. Worms are very common in chickens and can be treated with standard wormers. Worm eggs can be ingested directly or indirectly by chickens. Direct ingestion involves eating worm eggs, while indirect ingestion involves consuming an earthworm or bug that carries worm eggs. Chickens with worms may exhibit irregular feeding patterns, eating more or less than usual. They may also show signs of lethargy, puffed-up feathers, or droopiness. Additionally, the presence of worms can result in pale egg yolks, visible threads in egg whites, and abnormal droppings, such as diarrhoea, foamy, frothy, pale, or yellow faeces. In extreme cases of worm infestation, roundworms may be visible in the chicken's faeces.
To prevent and manage worms in chickens, regular deworming is recommended. This can be done using sanitizing powders that absorb moisture from chicken droppings and worm eggs. Another option is to use ultraviolet light (UV) from the sun to destroy worm eggs in short grass. Keeping the grass trimmed and rotating the ground can help prevent a buildup of worm eggs. It is also important to maintain a clean coop, free of droppings, and prevent contact with wild birds.
On the other hand, coccidiosis is a common intestinal tract infection caused by an overload of coccidia, a single-cell organism found around most animals. Young, sick, or malnourished chickens are particularly susceptible to coccidiosis. Signs of coccidiosis include lethargy, watery or bloody diarrhoea, lack of appetite, pale combs and wattles, droopy posture and wings, ruffled or puffed-up feathers, droopy or glazed eyes, and poor growth in chicks.
To prevent coccidiosis, it is essential to maintain a clean, dry coop to reduce coccidia exposure and parasite loads. Treating young chicks and practising good biosecurity can also help prevent coccidiosis. In terms of treatment, rapid intervention with Amprolium or Sulfa drugs is crucial to controlling outbreaks. Additionally, Apple Cider Vinegar (ACV) has been found to reduce coccidial infections and enhance treatment efficacy.
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Could be broody
A puffed-up chicken could be broody. A broody chicken is one that has gone into motherhood mode. Broody hens may exhibit aggressive behaviour and puff up their feathers when you go near them or try to collect their eggs. They may also stay in the coop all day, only leaving to eat and go to the bathroom, and scatter their breast feathers in the nesting box to warm the environment for their incoming chicks. Broody hens may also scream when touched in the nesting box.
Broodiness can cause a hen to puff up and cluck all the time. However, if a hen is broody, she may also be interested in sitting in the nest boxes. If she is still laying and acting normally, she may not be broody.
There are several ways to deal with a broody hen. One method is to repeatedly take the hen out of the nest every time they sit stubbornly on their eggs. Another method is to dunk the hen's feet in water or place an ice pack under their bottom.
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Or showing dominance
A chicken with puffed-up feathers can indicate that it is trying to conserve heat, which is often accompanied by lethargy and a lack of interest in food or water. This could be due to illness or health issues. However, in some cases, a chicken with puffed-up feathers may be displaying a sign of dominance.
One chicken owner observed that their chicken, which had its feathers puffed out, was one of their best layers but hadn't laid any eggs in two days. The owner checked for common issues such as being egg-bound, lice, mites, coughing, or wheezing, but found no apparent issues. The chicken was separated from the flock and kept inside in an animal crate, where it continued to stand still and show no interest in food or water.
In response to this situation, some suggested that the chicken might be broody and wanted to sit on its eggs and be left alone. Others recommended starting a round of medication in the chicken's water, such as Corid 9.6% liquid or 20% powder, to treat possible coccidiosis (Cocci) or worms. It was also recommended to check the chicken's legs and feet for any wounds, swelling, or discoloration that could indicate a more serious issue.
It is important to monitor the chicken's behaviour closely and seek expert veterinary advice if the situation persists or new symptoms arise.
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Frequently asked questions
A chicken that is puffed up could be attempting to conserve heat or could be unwell.
There are several reasons why a chicken might be puffed up, including coccidiosis, worms, or bumblefoot lesions.
Symptoms of coccidiosis can include a chicken being puffed up, lethargic, and having watery poop.
Coccidiosis can be treated with Corid, which can be found in the cattle medicines aisle of your feed store.
Other treatments for a puffed-up chicken can include an Epsom salt bath, tetracycline hydrochloride powder in their water, or deworming medications such as Safe Guard or Valbazen.

































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