A bird that seizures may fall off its perch, thrash about, stiffen its body, and then recover. It is extremely important to stop the seizure with medication and to discover the cause of the seizure, if possible. If the cause can be found, it is treated appropriately. If the bird is found to have a seizure disorder, it may be put on an anticonvulsent such as phenobarbitol. If a bird is seizuring repeatedly, do not wait to get the bird to a veterinarian.
Time is of the essence.
The longer this continues, the more likely that brain damage can occur. Take preventative measures to ensure your bird's safety. Have a first aid kit and your veterinarian's telephone number readily available. And in the event of an emergency, remain calm, know what can be done and follow the suggestions in these articles. Be prepared, the life you save may be your bird.