In the Silesia region of Poland, there is a type of vampire that is called a sriz. It climbs to the highest place in a community and calls out a person’s name. That same night, the person will die. What is interesting about this vampire is that there is no method given for how the sriz comes into being and what if anything it gains from the death it causes.

Source: Maberry, Vampire Universe, 272; Volta, The Vampire, 146