Seizures and Tremors in Geese: Neurologic Emergencies

See your vet immediately. Seizures and tremors are neurologic signs, not a single disease. In geese, they can look like fine shaking, head or neck twitching, loss of balance, paddling, rigid limbs, falling over, or full-body convulsions. Some birds stay aware during tremors, while others lose awareness during a true seizure.

Because geese are prey animals, they often hide illness until they are very sick. A goose showing repeated shaking, weakness, or collapse may have a toxin exposure, severe infection, metabolic problem, trauma, or a nutritional issue that needs urgent care. Waterfowl can also be affected by diseases that spread within a flock, so one sick goose may be a flock health concern as well.

The biggest immediate risks are overheating, drowning, head trauma, and aspiration. During an episode, do not force food or water. Move the bird to a padded carrier or small pen, dim the lights, reduce noise, and keep handling gentle until your vet can examine it.

There are several possible causes, and more than one can be present at the same time. Toxins are high on the list in backyard and small-farm geese. Lead and zinc can be swallowed from fishing sinkers, old paint, solder, hardware, or galvanized metal. Other toxic causes include pesticides, rodenticides, some medications, contaminated water, and spoiled feed. Heavy metal exposure is especially important to rule out because birds can show weakness, ataxia, gastrointestinal upset, and seizures.

Infectious disease is another major concern. Waterfowl can carry or develop avian influenza, and neurologic signs such as twitching, seizures, or abnormal posture can occur in some birds. Newcastle disease and other severe poultry infections can also cause tremors, twisted necks, weakness, diarrhea, and sudden death. Botulism is common in waterfowl and usually causes flaccid weakness and paralysis rather than classic seizures, but it can look like a neurologic collapse emergency.

Nutritional and metabolic problems can also trigger shaking or seizures. Deficiencies involving vitamin E and selenium, or other diet imbalances, may cause neurologic or muscle disease in poultry and waterfowl. Low blood sugar, low calcium, dehydration, heat stress, head trauma, and severe liver disease are additional possibilities. Because the list is broad, your vet will focus on the goose's age, diet, environment, flock history, and exact pattern of signs.

Your vet will start with a careful history and physical exam. Helpful details include the bird's age, diet, access to ponds or pasture, recent weather, egg production, new birds, exposure to wild waterfowl, and any possible contact with metal, paint, chemicals, or spoiled feed. A phone video of the episode is often one of the most useful tools because tremors, weakness, and true seizures can look different.

Initial testing often includes bloodwork to check glucose, calcium, electrolytes, hydration, and liver and kidney values. Fecal testing, crop or cloacal samples, and infectious disease testing may be recommended if there are flock concerns. If heavy metal exposure is possible, your vet may suggest radiographs to look for metal in the digestive tract and blood testing for lead or zinc. In suspected toxicosis cases, bringing feed and water samples can help.

Some geese need treatment before every answer is available. Stabilization may include oxygen, warmth, fluids, seizure control, assisted feeding plans, and removal from the flock. If a goose dies or must be euthanized, necropsy through your vet or a veterinary diagnostic lab can be the fastest way to protect the rest of the flock by identifying infectious disease, toxin exposure, or nutritional problems.

Prevention starts with environment and diet. Feed a complete waterfowl-appropriate ration, store feed in a dry rodent-proof container, and discard moldy or wet feed. Remove access to old paint, batteries, fishing tackle, lead weights, solder, treated wood scraps, and galvanized items that can be pecked or swallowed. Clean water matters too. Stagnant water, decaying organic matter, and carcasses can increase the risk of botulism and other disease problems in waterfowl.

Strong biosecurity is also important. Keep domestic geese separated from wild birds when possible, avoid mixing species unnecessarily, quarantine new arrivals, and isolate any sick bird right away. Dedicated boots, hand hygiene, clean bedding, and regular disinfection of feeders and waterers can lower infectious disease risk. If you notice neurologic signs, sudden deaths, or multiple sick birds, contact your vet promptly because some poultry diseases require rapid testing and reporting.

Routine flock observation helps you catch problems early. Watch for subtle changes in gait, appetite, droppings, posture, and behavior. Review housing for heat stress risks, trauma hazards, and drowning risks around tubs or ponds for weak birds. If your geese free-range, ask your vet about local toxin and infectious disease risks in your area and how to build a practical prevention plan that fits your flock and budget.