The term "Sokol Bulku" does not appear to correspond to any widely recognized concept, person, organization, or phenomenon in publicly available, reliable encyclopedic sources. Accurate information is not confirmed.
It is possible that "Sokol Bulku" could be a proper name, potentially of personal or regional significance, combining elements from Slavic and Albanian linguistic roots. "Sokol" is a common male given name in various Balkan and Slavic countries, deriving from the word for "falcon" in several South Slavic languages. "Bulku" may resemble surnames or nicknames found in Albanian-speaking regions, though its exact meaning or origin is unclear.
Without verifiable references or established context, no definitive description can be provided. The term is not documented in major academic, historical, or cultural databases as of the current knowledge base.