Whether the modern Arabian birds with the same name as the old Arcadian birds are also of the same breed, I do not know. But if there have been from all time Stymphalian birds, just as there have been hawks and eagles, I should call these birds of Arabian origin, and a section of them might have flown on some occasion to Arcadia
and reached Stymphalus. Originally they would be called by the Arabians, not Stymphalian, but by another name. But the fame of Heracles, and the superiority of the Greek over the foreigner, has resulted in the birds of the Arabian desert being called Stymphalian even in modern times.