Harpy:
In Greek and Roman mythology, a harpy is a creature that is half-human and half-bird. They are often depicted as the "Hounds of Zeus" and are associated with storm winds. Harpies are also associated with the dead and are sometimes seen as servants to Hades or guardians of the underworld. In Greek mythology, harpies are the personification of evil, especially greed. They kill humans or steal their souls on behalf of Zeus.