In Albanian belief, the kukudhi is the final stage in the transformation of a vampire. It is basically the perfect vampire. It takes 30 years from the start to the finish of this transformation. During this time kukudhi grows in strength, shape, and vampiric powers. When it reaches the state of kukudhi, a vampire is no longer vulnerable to sunlight and no longer is required to return to its grave or keep the cemetery close by. In the kukudhi stage the creature is now able to travel extensively (usually as a merchant) or reside at his own home.
Like any vampire it can be destroyed by staking, decapitation, and cremation. It can be rendered harmless by hamstringing.
References
Kukudhi Wikipedia(Text) CC BY-SA