01/15/2026
Some information on beak and feather disease. Testing for this virus is quite simple and only requires a swab!
Psittacine Beak and Feather Disease (PBFD) is a viral infection caused by a member of the circovirus family. This infection can affect birds of any age but nestlings and young adults are at the greatest risk making it of particular concern for aviculturists. The infection has two forms – acute and chronic. In the acute form birds develop bone marrow suppression and liver failure. Parrots with chronic disease develop feather dystrophy and may develop abnormalities to the beak and nails. Chronically affected birds are immunosuppressed and often pass of secondary infections.
PBFD can affect any member of the psittacine family, however, it is most commonly recognized in cockatoos, eclectus, budgerigar, lories, lorikeets, African greys, and lovebirds. Infected parrots transmit the infection through their skin and feather dander, f***s, crop secretions, and potentially through the egg. As circoviruses are very stable in the environment and resistant to many disinfectants, this can present significant long-lasting problems for aviaries that have been exposed.
Unfortunately, only supportive treatment options are available and no commercial vaccines currently exist for PBFD. The best way to handle PBFD in the flock is to keep it out. Test all new birds before adding them to the aviary. If testing the feathers or f***s, be aware of the potential for false positive results from environmental contamination. When it comes to PBFD, taking a proactive approach to avoid infections can help aviculturists prevent larger problems later.
Quick facts
- Lovebirds have a higher rate of asymptomatic infections and can shed the virus despite the lack of clinical signs.
- It can take weeks to years after exposure to the virus for parrots to show clinical signs of the disease.
- The virus that causes PBFD is very stable in the environment and resistant to many disinfectants.
https://www.aav.org/blogpost/1787676/516109/Psittacine-Beak-and-Feather-Disease--An-Illness-Best-Avoided