Everything You Need to Know about Feather Loss in Chickens
Feather loss in chickens can be alarming, especially when it happens suddenly or spreads quickly through the flock. Whether you’re raising chickens in your backyard or managing a small coop, noticing bald patches or ragged feathers often leads to concern. Feather loss in chickens can happen for a variety of reasons, and understanding the underlying cause is key to addressing the issue appropriately. This blog outlines the common reasons chickens lose their feathers and what may be happening behind the scenes in their environment, health, or social structure. If your chickens are experiencing unusual feather loss, contact Paws and Claws Animal Medical Center in Dunedin at (919) 847-6216 to speak with a veterinary professional.

Natural Causes of Feather Loss in Chickens
Some feather loss in chickens is completely normal and part of their natural life cycle. These changes typically happen at predictable times of the year or life stages.
Molting
Molting occurs annually when birds shed old feathers and grow new ones. It typically starts in late summer or early fall, lasting anywhere from a few weeks to a couple of months. During a molt, chickens may look patchy or ragged, and egg production often drops. This temporary condition is not cause for concern. However, chickens undergoing a molt may need extra care, such as higher protein feed, to support new feather growth and maintain overall health.
Broodiness
Broody hens—those that are preparing to sit on eggs—often pluck feathers from their breast to create a warm nesting area. This behavior leads to noticeable bald spots on the underside of the hen. It’s natural and typically resolves once the broody phase ends.
Age and Wear
As chickens age, their feathers can become worn from environmental exposure and everyday activities like dust bathing and foraging. Feather loss related to age or wear typically happens gradually and doesn’t affect the bird’s health.
Environmental Stressors That Contribute to Feather Loss
Stressful conditions can trigger feather loss in chickens, even if they’re otherwise healthy. Identifying and addressing environmental stressors can help prevent feather loss from escalating.
Overcrowding
Too many chickens in a confined space can lead to aggression, pecking, and feather loss. Each bird needs adequate room to perch, forage, and rest. When space is limited, chickens may become anxious or territorial, which often results in feather pecking and injuries.
Poor Ventilation or Temperature Extremes
Coops that are too hot, too cold, or poorly ventilated can cause stress, which may manifest as feather loss. Chickens need consistent temperatures, protection from drafts, and good airflow to remain comfortable and healthy. Prolonged exposure to extreme conditions can weaken their immune systems and impact feather condition.
Inadequate Nutrition
Feathers are made mostly of protein, so deficiencies in the diet can lead to poor feather quality or loss. Chickens that aren’t getting enough nutrients—especially during molting—may struggle to regrow feathers or retain the ones they have. A balanced feed with appropriate protein and vitamin levels supports feather development and overall wellness.
Behavioral and Social Causes of Feather Loss in Chickens
Feather pecking and bullying are common in chicken coops and often lead to localized feather loss, especially around the neck, back, or tail.
Pecking Order Conflicts
Chickens establish a social hierarchy known as the pecking order. While this structure helps maintain order in the flock, it can lead to feather plucking when dominant birds assert their status. Feather loss related to social dynamics often appears in lower-ranking birds and may worsen if left unaddressed.
Boredom or Lack of Enrichment
When chickens lack opportunities to explore, forage, or scratch, they may redirect their energy toward each other. Boredom-related feather picking can be reduced by adding enrichment to the environment, such as hanging vegetables, offering dust baths, or rotating toys and perches.
Introducing New Birds
Adding new chickens to an established flock can disrupt the pecking order and lead to aggression. Feather loss during this adjustment period is common but can be minimized with gradual introductions, extra space, and careful monitoring.
Health Conditions That May Cause Feather Loss
Feather loss in chickens isn’t always caused by behavior or environment. Underlying health issues can also contribute to feather thinning or bald spots.
External Parasites
Mites and lice are two of the most common culprits when chickens lose feathers, especially around the vent, neck, and under the wings. These parasites feed on blood or skin, causing irritation, inflammation, and feather damage. Infestations can spread rapidly throughout the flock, so prompt action is essential. Signs of parasite problems include:
- Constant preening or scratching
- Scaly or irritated skin
- Decreased egg production
- Weight loss or lethargy
If you suspect a parasite issue in your flock, contact Paws and Claws Animal Medical Center at (919) 847-6216 for guidance.
Skin Infections or Irritations
Skin infections, either bacterial or fungal, may lead to feather loss in localized areas. These often appear as red, scabby, or inflamed patches of skin. Moisture buildup in the coop or prolonged dampness from rain can create an environment where skin infections thrive.
Hormonal or Endocrine Imbalances
In rare cases, internal health conditions such as thyroid disorders can cause abnormal feather loss. These issues are usually accompanied by other symptoms like behavioral changes, reduced appetite, or difficulty regulating body temperature. A veterinary examination can help determine whether an underlying illness may be involved.
Consult Your Veterinarian about Feather Loss in Chickens
Although some feather loss in chickens is normal, other cases may require veterinary insight—especially if the problem spreads, worsens quickly, or is accompanied by signs of illness. Birds that appear lethargic, lose weight, or stop eating may be experiencing more than just molting or minor pecking issues.
Veterinary evaluation can help rule out parasites, infections, or other underlying causes that aren’t always visible. A professional can also advise on environmental adjustments and offer guidance on flock management. For flock owners in Dunedin, FL, Paws and Claws Animal Medical Center is equipped to help. Call (919) 847-6216 to schedule a consultation if you’re concerned about feather loss in your chickens.