What behavior is commonly observed in birds experiencing capture myopathy?

Capture myopathy is a physiological condition that can occur in birds when they are stressed or subjected to extreme exertion, particularly during capture or handling. The correct behavior commonly observed in birds experiencing this condition is seizures.

During capture myopathy, the bird undergoes significant metabolic and physiological stress, leading to muscle damage and, in severe cases, neurological disturbances. Seizures are one of the neurologic manifestations that can arise as a result of the muscle cell breakdown and the subsequent release of toxins into the bloodstream.

While lethargy may also be observed as a consequence of the overall stress and physical compromise, it is not as definitive a symptom as seizures, which indicate a more acute and critical impact of the condition on the nervous system. Increased vocalization can occur in some contexts due to stress, but it is not a direct indicator of capture myopathy. Feather plucking is typically associated with other conditions such as boredom, anxiety, or feather damaging behavior rather than being a characteristic of capture myopathy. Thus, the presence of seizures highlights the severity and urgent nature of the physiological changes occurring in the bird, making it the most relevant behavior linked to capture myopathy.