SUMMARY: Sadiri Lodge is known as a birding destination with +400 bird species recorded. An online search showed walking trails on a forested ridge with mammal potential so I visited in June 2023 for four nights. I saw +17 mammal species at the lodge, including Western Amazonian Mouse Opossum, Ferreiras Spiny Tree Rat, Simon’s Spiny Rat and Vargas Llosa’s Bristly Mouse. We also saw fresh footprint of Bush Dog which Raul Navi (my lodge guide) has seen here before. In the nearby lowlands we also saw Madidi Tit Monkey.