What is "sirishtnik"

Sirishtnik is a village in western Bulgaria, part of Kovachevtsi municipality, Pernik Province. It lies 25 km west if Pernik, at , 742 metres above sea level. As of 2005, it has a population of 268 and the mayor is Plamen Yanev. The village is situated on the banks of the Svetlya River, a tributary of the Struma. Sirishtnik is the birthplace of Former Bulgarian President Georgi Parvanov, who, while born there, grew up in the neighbouring village of Kosacha, from where his mother and father stem.