Psittacine beak and feather disease is a serious viral infection affecting parrots worldwide, with significant welfare implications.
PBFD causes progressive, distressing feather loss that impairs thermoregulation, flight, and social interaction. Beak abnormalities compromise feeding and can cause chronic pain. Affected parrots require supportive care including warmth, enrichment, and social contact. The welfare decision of when to euthanise a bird with advancing PBFD depends on body condition, ability to eat, and quality-of-life assessment.