entity_id,period_id,confidence,rationale,source_id,review_status ENT_NORF_HULDRA,PER_NOR_VIKING,high,"The beautiful forest-dwelling female being of later Norwegian/Swedish folklore (huldra/skogsra), recognizable by a cow's tail or hollow back, who lures herdsmen and woodsmen; one of the huldufolk ('hidden people'). Post-medieval folk tradition rather than eddic; documented by Simek.",SRC_SIMEK_NORTHERN,reviewed