What is "ubir"

Ubir (Chuvash: Вупăр (Vupăr) or Вупкăн (Vupkăn), Tatar: Убыр, Turkish: Ubır) is a mythological or folkloric being in Turkic mythology who subsist by feeding on the life essence (generally in the form of blood) of living creatures, regardless of whether it is undead person or being.

Ubirs were usually reported as bloated in appearance, and ruddy, dark in colour; these characteristics were often attributed to the recent drinking of blood. The causes of vampiric generation were many and varied in original folklore. In Turkic and Slavic traditions, any corpse that was jumped over by an animal, particularly a dog or a cat, was feared to become one of the undead. Ubirs are reanimated corpses that killing living creatures to absorb life essence from their victims.

Tales of supernatural beings consuming the blood or flesh of the living have been found in nearly every culture around the world for many centuries. Almost every nation has associated blood drinking with some kind of revenant or demon, or in some cases a deity. A story is told about blood drinking in the Epic of Ural-Batyr. Once when the parents were gone hunting, Shulgen was challenging Ural to drink the blood of animal at home, that was left by parents. Ural refused to do it. Then Shulgen drank the blood himself. Parents cursed their son Shulgen and rejected him.