Leghorn Chicken: Health, Temperament, Care & Costs

Leghorns are one of the best-known egg-laying chicken breeds in the world. They originated from small landrace chickens in the Livorno region of Italy and became popular in the United States because they lay heavily, forage well, and eat relatively modest amounts for the number of eggs they produce. Mature hens usually weigh about 4.5 pounds, while roosters are often around 6 pounds. Many Leghorns lay 150 to 320 large white eggs per year, depending on strain, management, and age.

In personality, Leghorns are usually alert, active, and independent. Many are more flighty than cuddly, and they often prefer exploring, scratching, and foraging over being handled. That does not make them poor pets, but it does mean they are often a better fit for pet parents who want productive, energetic birds rather than calm lap chickens.

They tend to do well in warm climates and can also tolerate cooler weather, but large single combs are more prone to frostbite in cold regions. Because they are athletic birds that can fly better than many heavier breeds, they usually need secure fencing, enough coop space, and daily opportunities to move around. In the right setup, Leghorns are hardy, efficient backyard layers with a lot of personality.

Leghorns are generally hardy chickens, but their high egg output creates some predictable health risks. Like other laying hens, they can develop thin shells, weak bones, or reduced production if calcium, vitamin D, phosphorus, or overall nutrition are not well balanced. Laying hens need a true layer ration and enough calcium support, while growing birds should not be fed high-calcium layer diets before they are ready to lay because that can damage the kidneys.

Because Leghorns are active foragers, they can also pick up common backyard flock problems such as mites, lice, intestinal parasites, and coccidiosis. Coccidiosis can cause diarrhea, weight loss, reduced appetite, lower egg production, and in severe cases death, especially in younger or stressed birds. External parasites may lead to feather damage, irritation, pale combs, and poor body condition.

Breed traits matter too. Single-comb Leghorns are more vulnerable to frostbite in cold weather. Their light, productive frame also means they can lose condition quickly if feed quality slips or if they are bullied away from feeders. Contact your vet promptly if your Leghorn is weak, stops eating, has diarrhea, lays soft-shelled eggs repeatedly, strains to lay, shows breathing changes, or has a sudden drop in egg production.

Leghorns are often considered efficient birds because they are small eaters relative to their egg output, but they still come with real ongoing costs. In the United States in 2025 to 2026, hatchery or farm-store chicks commonly run about $4 to $8 each, while started pullets often cost about $20 to $35 each depending on age, sexing, vaccination status, and local demand. A secure coop and run is usually the biggest startup expense, often ranging from about $300 for a very basic DIY setup to $1,500 or more for a larger predator-resistant build.

Feed is the main recurring cost. Commercial layer feed commonly averages about $16 to $22 per 50-pound bag, with many backyard flocks spending roughly $8 to $15 per hen per month once you include feed, oyster shell, grit, bedding, and a little waste. Organic or specialty feed can push that higher. Pet parents should also budget for seasonal supplies like electrolytes during heat, extra bedding in wet weather, and fencing repairs.

Veterinary costs vary widely by region and by whether you have access to a poultry-savvy practice. A wellness exam may range from about $60 to $120. Fecal testing often adds around $25 to $60, and treatment for parasites, wounds, egg-laying problems, or respiratory disease can move a visit into the $100 to $300 or higher range. Emergency care, imaging, surgery, or flock diagnostics can cost much more, so it helps to plan ahead before a problem starts.

Leghorns do best on a complete commercial diet matched to life stage. Chicks need starter feed, growers need grower or developer feed, and laying hens need a balanced layer ration. For layers, a feed with about 16% to 18% protein and roughly 3.5% to 4.5% calcium is commonly recommended to support egg production, shell quality, feather maintenance, and long-term health. Clean water matters as much as feed. Chickens will reduce feed intake if water is limited, and that can quickly affect health and laying.

Because Leghorns are prolific layers, free-choice oyster shell is often helpful even when they are already eating layer feed, especially if shell quality is inconsistent. Grit may also be needed for birds eating whole grains, treats, or forage. Treats should stay limited. Scratch grains, mealworms, and fruit can be enjoyable extras, but they are not balanced diets and should not crowd out complete feed.

Avoid feeding highly salted foods, chocolate, avocado, alcohol, or caffeine. Store feed in its original bag or clearly labeled container in a cool, dry, rodent-proof area. If your Leghorn is losing weight, laying soft-shelled eggs, or showing poor feather quality, ask your vet to help rule out parasites, disease, or diet imbalance rather than assuming it is only a feed issue.

Leghorns are busy birds. They usually want more activity than heavier, calmer breeds, and many do best when they can forage, scratch, dust-bathe, and explore every day. Their natural energy is part of what makes them such efficient backyard chickens, but it also means they can become restless in cramped housing.

A secure run plus regular outdoor time helps support muscle tone, foot health, and normal behavior. Many chickens benefit from at least 1 to 2 hours of protected outdoor time daily, and Leghorns often appreciate even more if your setup allows it. They are good fliers compared with many backyard breeds, so fencing and overhead protection may need to be more robust.

Environmental enrichment matters too. Perches, dust-bathing areas, hanging greens, safe scratch zones, and multiple feeding stations can reduce boredom and social stress. If a Leghorn suddenly becomes quiet, isolates from the flock, or stops ranging, that can be an early sign of illness and is worth discussing with your vet.

Preventive care for Leghorns starts with flock management. Good ventilation, dry bedding, clean waterers, rodent control, and enough feeder space all lower stress and disease pressure. Weekly hands-on checks are useful for this breed because active birds can hide illness well. Look at body condition, comb color, feather quality, feet, vent area, and whether the bird feels lighter than usual.

Parasite control is a major part of prevention. Chickens should be checked regularly for mites and lice, and yearly fecal analysis is often recommended to screen for intestinal parasites. Biosecurity also matters. New birds should be quarantined before joining the flock, and shoes, tools, and visitors can all carry disease between groups of birds.

Vaccination plans vary by region and flock goals, so your vet should guide that decision. Marek's vaccination is commonly recommended for chicks on day 1, while other vaccines may be used only in specific situations. In cold climates, protect large combs from frostbite risk. In hot weather, provide shade, airflow, and cool water. If you notice sudden deaths, breathing problems, neurologic signs, or a flock-wide drop in egg production, contact your vet quickly and ask whether diagnostic testing or necropsy would help.