Beak and feather disease virus (BFDV) is a virus that primarily affects psittacine birds, such as parrots and cockatoos. It causes a range of symptoms, including feather loss, abnormal feather growth, and beak deformities. The virus is highly contagious and can spread through direct contact or contaminated environments. Infected birds may also experience immune system suppression, making them more susceptible to other infections. There is no cure for BFDV, and prevention focuses on good hygiene practices and avoiding contact with infected birds. Vaccines are not available, so early detection and management are crucial for affected populations.