Seizures in birds are caused by issues in which system?

Seizures in birds are primarily linked to abnormalities or disruptions in the nervous system. The nervous system controls various functions and processes in the body, including motor control, sensory perception, and coordination. When there is a malfunction or damage within this system, it can lead to neurological symptoms, one of which is seizures.

The other systems mentioned do not directly relate to seizure activity. For instance, while the respiratory system is vital for oxygen exchange and can lead to distress if malfunctioning, it is not responsible for seizure activity. Vision and plumage, on the other hand, are aspects related to sight and feather health, respectively, neither of which would cause seizures. Hence, understanding the role of the nervous system is crucial in diagnosing and managing seizures in birds.