5,000 (Heegård Petersen 2006).
South Chitral district, Rumbur valley, Balanguru village. Southern Kalasha dialect: Urtsun valley; Northern Kalasha: Rumbur, Bumboret, and Birir valleys.
Northern Kalasha (Birir, Bumboret, Rumbur), Southern Kalasha (Urtsun). An eastern dialect may be on the east side of Chitral River, south of Drosh. Related to Khowar [khw]. Little contact between Northern and Southern dialects. Lexical similarity: 75% southern dialect with northern dialects.
Traditional religion, Muslim.