Archive Case #11: Avian Beak And Feather Disease

Clinical Clues

1. A 7-month-old sulphur-crested cockatoo.
2. The owner reports progressive feather loss and poor feather regrowth during recent moults.
3. The bird has become quieter, with brittle feathers and occasional bleeding from developing feather shafts.
4. On examination there are malformed contour feathers, dystrophic pin feathers, and abnormal beak surface quality.
5. PCR testing on feather and blood samples detects circoviral DNA.
6. A contagious circovirus targeting feather follicles and immune tissues causes progressive plumage dystrophy and immunosuppression in psittacine birds.

Diagnosis

Avian Beak And Feather Disease

Psittacine beak and feather disease is a circoviral disease of parrots and related birds. It causes progressive feather abnormalities, beak changes, and immunosuppression, especially in young birds.

Educational Use

Vetdle archive cases are educational veterinary games for diagnostic reasoning practice. They do not provide veterinary advice, diagnosis, treatment, or professional medical guidance.