This study aims to estimate the daily travel distance and home range area of a rehabilitated male siamang (Symphalangus syndactylus) named Joni, post-release in the Isau-Isau Wildlife Reserve, South Sumatra. Observations were conducted over 15 days through direct focal follows, supported by secondary data from a ±5-month monitoring period. Joni's average daily path length was 1082.4 ± 437 met…