This area has high rainfall and has important hydrological function, because this area is on the upper stream of Cisadane river. Badui people live in the western part of this area, and still practise their tradisional lifestyle without influence from outside (Whitten personal communication.1991). There are around 44 villages around of area (data in 1976). Some of villages are located inside the buffer zone of Halimun National Park, and 4 villages is in the enclave (Directorate General of Tourism , undated).
Non-bird biodiversity: Cuon alpinus, Panthera pardus, Hylobates moloch, Presbytis comata, Trachypithecus auratus (MacKinnon et.al. 1982, Hedges & Tyson 1996, Whitten et.al. 1996)
BirdLife International (2020) Important Bird Areas factsheet: Gunung Halimun. Downloaded from http://www.birdlife.org on 30/05/2020.