The budgegarigar (Melosittacus undulatus Shaw, 1805) is a bird of the order Psittaciformes and family Psittaculidae. This species is considered the third most popular pet in the world and is frequently seen in veterinary clinics. Among the diseases that can affect these animals, the Psittacidae beak and feather disease (PBFD), or circovirosis, is an infectious disease commonly reported in some regions. This paper aims to describe the case of a budgegarigar presenting generalized aptheria and self-mutilation of limbs due to PBFD and feather-picking disorder in Northeastern Brazil. A budgegarigar was admitted to the Veterinary Hospital of the Federal Rural University of the Semiarid (HOVET-UFERSA) with generalized aptheria. Subsequently, feces were collected and a molecular polymerase chain reaction (PCR) analysis for PsCV Circovirus was requested. The result was positive, and upon the animal's return to the clinic, it presented right carpometacarpal and tarsometatarsal self-mutilated. Considering that reports of these disorders for psittacidae are scarce in the Northeast, we report the first occurrence of circovirosis and consequent feather-pulling disorder with clinical manifestation of generalized aptheria and self-mutilation of limbs in a budgegarigar in the state of Rio Grande do Norte, which represents a risk for the conservation of wild Psittacidae in this region.