New sighting and conservation implications of the endemic Sulu Boobook <Ninox reyi> Oustalet, 1880 at Bolobok Rock Shelter, a key archaeological site in the Sulu Archipelago, southern Philippines

We report a new sighting of the vulnerable and endemic Sulu Boobook Ninox reyi at Bolobok Rock Shelter, Tawi-Tawi, Philippines, on 10 July 2023. This observation expands the species’ known range and suggests possible adaptation to limestone karst habitats, indicating a broader ecological niche than previously documented. Further surveys are necessary to establish the species’ long-term presence, reproductive activity, and population status in the area. Given Bolobok Rock Shelter’s dual significance as both a cultural heritage site and a potential critical habitat for Ninox reyi, we emphasize the need for continued monitoring & conservation efforts to safeguard both the species and its environment.Keywords: