Sunny, a 47-year-old white umbrella cockatoo, has been a constant companion to Kevin Van Arkel for more than three decades. He said the bird serves as his emotional support animal for epilepsy. "One ...

A 10-year-old, female umbrella cockatoo (Cacatua alba) was presented for evaluation of a mass at the right commissure of the beak, with associated right periorbital swelling. A feather cyst was ...