Minyades - Cursed dark faeries

en.wikipedia.org/wiki/Minyades - Do you need one reason to make the bats look like one dark faerie linked being or vampire related before Stoker? You have this Myth. On other versions, the last sister was the bat, the other two were transfomed on owls (the two differents species, since in Spanish we have common worlds to differents species - buho y lechuza)