While parrot bornaviruses are accepted as the cause of proventricular dilatation disease (PDD) in psittacine birds. the pathogenic role of bornaviruses in common canaries is still unclear. To answer the question of whether canary bornaviruses (species Orthobornavirus serini) are associated with a PDD-like disease in common canaries (Serinus canaria f. dom. https://www.tourettebrewing.com/