Parasitic diseases of wild birds follows its companion volume, infectious diseases of wild birds, both of which complement the third edition of infectious diseases of wild mammals and second edition of parasitic diseases of wild mammals. In October 2012, a mature black male mynah with lack of balance and ataxia was brought into the birds department of educational hospital in veterinary medicine faculty of Tehran University. Because of no cure in clinical signs after several days of empirical therapy euthanasia and clinical pathology studies were performed. There was no microscopic pathological lesions in brain, bone marrow, heart, lung, liver and the microscopic results were as following; bone marrow: hemophagocytosis reactive macrophages, liver: infiltration of inflammatory cells (hepatitis) and hemosiderin-laden macrophages. Lung: hemosiderin-laden macrophages and spleen findings: infiltration of inflammatory cells, heterophils with phagocytic bacteria. In abdominal cavity two male and one female parasite was detect. Three parasites were cleared with lactophenol and investigated under the light microscopy and important morphological parts of them measured. Also these parasites in serum containing send to the department of parasitology. Based on all collecting data, Spinodiplotriaena (three parasites each by the length of 2/5, 1/7 and 1/5 cm were found) were diagnosed. Report of this case in important because of first report of this infection in a black mynah in Iran.