
There are many reasons why chickens lose their tail feathers. One of the most common reasons is moulting, which occurs annually, usually from late summer to late fall. During moulting, chickens lose and replace their feathers in a particular order, starting with the head, neck, body, back, breast, stern, thighs, and wings, with the tail feathers being the last to fall out. Moulting is a natural process, and there is no need for concern unless the feathers don't start growing back or if the chicken is unable to stay warm. Another reason for tail feather loss could be feather plucking, which is a behavioural problem that occurs when chickens don't have enough to peck at and start pecking at their own or other chickens' feathers. Chicken mites, bullying within the flock, boredom, and infections like vent gleet are other possible causes of feather loss.
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What You'll Learn

A drooping tail could indicate a hen is egg-bound
A drooping tail is a sign that a hen is unwell. While it does not always mean that the hen is egg-bound, it is a common symptom. Egg binding occurs when an egg gets stuck inside the chicken's oviduct, and the hen is unable to pass it. This is a serious condition that can be life-threatening if not addressed quickly.
Egg binding is quite common, especially in certain breeds of chickens. Genetics play a role, with hens bred for production purposes having a higher chance of becoming egg-bound. Other factors that can contribute to egg binding include cramped spaces, uncomfortable weather, intestinal parasites, predators, and stress caused by new coop members or a recent move.
If a hen is egg-bound, she may exhibit symptoms such as a drooping tail, swollen abdomen, loss of appetite, disinterest in drinking, acting stressed, repeatedly going in and out of the nesting box, decreased activity, shaky wings, and walking like a penguin. The egg will also block the chicken from being able to defecate, which can lead to death if not addressed within 24 to 48 hours.
To treat an egg-bound hen, it is important to keep her warm, provide hydration, and gently massage her abdomen and vent area with oil. Soaking the hen in a warm bath for about 20 minutes can also help. Additionally, providing calcium supplements or crushed oyster shells can aid in muscle contractions needed to pass the egg. It is crucial to act quickly and seek veterinary help if symptoms do not improve.
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Tail loss is part of the moulting process
Moulting is the natural process of chickens shedding their old feathers and growing new ones. It occurs at regular intervals for each chicken, but it can also be triggered by a lack of water, food, or a sudden change in lighting conditions.
Chickens experience two "mini moults" before their first annual moulting. The first begins at 6-8 days old and is complete by approximately four weeks, while the second occurs between 7-12 weeks old. The first annual moulting generally happens around 16-18 months of age.
Moulting starts with the head and neck, proceeding down the back, breast, wings, and tail. It can last anywhere from 3 weeks to 6 months, and during this time, egg production may slow down or stop entirely.
Moulting can be a stressful and uncomfortable time for chickens. New feathers, or pin feathers, are hard and full of blood, and if they break, it can lead to other problems such as pecking from other chickens or infection. To support your chickens during moulting, you can increase their protein intake and limit handling to reduce stress.
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Tail loss could be due to parasites
While tail loss in chickens is not usually a distressing sign, it could be due to parasites. Chickens can lose their tail feathers due to bullying, stress, molting, and bites from parasites like lice or mites. Lice and mites are common parasites that attack chickens and can cause feather loss. Lice are flat, yellow, fast-moving parasites that are about 2mm long and usually found around the vent or under the wings. They move quickly away from the light and feed on skin and feather debris. Mites and lice can damage feathers and skin, causing bald spots and irritation, which leads to chickens picking at their own feathers and skin to obtain relief. Warmer temperatures are ideal for the proliferation of mites and lice, and they are mainly active at night when they feed on the blood of roosting chickens. Excess blood loss due to mites and lice can lead to anaemia and even death. Other parasites that affect chickens include gapeworms, which live in the trachea and are coughed up and excreted to infect other chickens, and hexamita, a protozoa that causes diarrhoea and unthriftiness.
To address tail feather loss due to parasites, it is important to identify the specific parasite and treat all infected birds and the coop. Treatments for mites and lice include dusting the chicken's body and inside the coop with poultry dust or organic treatments such as garlic juice. Free-ranging and dust bathing can also help chickens maintain the health and appearance of their skin and feathers. In addition, providing a nutritionally complete feed and limiting treats can improve feather health.
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Tail loss could be due to stress
Chickens can lose their tail feathers due to moulting, which is a natural process that occurs annually, typically in the fall. During moulting, chickens shed their old feathers and grow new ones. This process can cause chickens to look rough, with naked necks and patchy backs, and it can also affect their behaviour, leading to a change in the pecking order within the flock. Moulting can be more noticeable in some chickens than others, and the degree to which a chicken moults can vary.
While moulting is a natural process, there are other potential causes of tail feather loss in chickens that may be more concerning. One possible cause is stress, which can lead to feather picking or even cannibalism within the flock. Chickens may start pecking at their own feathers or the feathers of other chickens due to boredom, bullying, or inadequate protein in their diet. Inadequate protein in the diet is a common issue, as both eggs and feathers are made mostly of protein. Therefore, during moulting, it is important to ensure that chickens have enough protein in their diet to support feather regrowth. This can be done by providing protein-rich treats such as mealworms and sunflower seeds, or by returning to a grower feed formulation until the moulting period is complete.
In addition to stress and moulting, other potential causes of tail feather loss include dietary deficiencies, feather picking by other chickens, pests, and parasites such as mites and lice. To determine the cause of feather loss, chicken keepers may need to do some "detective work" by observing the flock's behaviour, checking for pests and parasites, and ensuring that the chickens are on an appropriate diet for their age. Once the cause is identified, steps can be taken to encourage feather regrowth, such as improving nutrition, providing more living space, and regularly cleaning the coop.
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Tail loss could be due to a bacterial GI infection
A chicken with a lowered tail could be suffering from a bacterial gastrointestinal (GI) infection. The chicken's gastrointestinal tract (GIT) is integral to its health and productivity. A healthy gut in poultry birds provides protection against pathogens and aids in nutrient production and immune system maturation.
The gut microbiome can be affected by diet, and dietary interventions can be used to enhance bird growth and reduce the risk of bacterial infections. The inner surface of the avian gut is coated with a mucus layer that acts as a first line of defense against infection. This mucus layer can prevent gut microorganisms from penetrating the intestinal epithelium.
However, if a chicken's gut becomes imbalanced, it may be more susceptible to bacterial infections. For example, Campylobacter jejuni is a bacterium that heavily populates the chicken gut but does not cause disease in chickens. In contrast, other bacteria, such as Salmonella and C. perfringens, can cause infections in chickens.
Symptoms of a bacterial GI infection in chickens may include a lowered tail, lethargy, decreased activity, and altered droppings. In addition, a chicken with a bacterial GI infection may experience a decreased appetite, as observed in the case of a chicken owner who reported that their sick chicken "won't eat."
If you suspect your chicken is suffering from a bacterial GI infection, it is important to consult with a veterinarian or a poultry health specialist for proper diagnosis and treatment.
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Frequently asked questions
No, this is likely a natural part of the moulting process, where chickens lose and replace their feathers in a particular order, starting with the head and ending with the tail. It can sometimes make chickens feel frightened and insecure, and they may act rough.
Anywhere from 1-3 months is normal. You can speed up the process by boosting your chicken's diet with protein-rich products or supplements.
Yes, feather loss can be caused by dietary deficiencies, feather picking, pests, parasites, or even rodents.











































