Described as valley and and mountains up to more than 2500 m elevation. There are some Dayak villages in this area. Dominated by slope area from 200 m elevation up to the top of Gunung Lognawan (2558 m), that cross the country boundary to Pulong Tau reserve in Sarawak (Malaysia).
It is predicted that almost all of Kalimantan endemic species can be found in this area, which some species are recorded near the boundary (Pfeffer 1960-1961). Some of the species which have been already confirmed by van Balen (1997) are Besra Accipiter virgatus, Large Hawk-cuckoo Cuculus sparverioides, Mountain Scops-owl Otus spilocephalus, Whitehead's Trogon Harpactes whiteheadi, Golden-naped Barbet Megalaima pulcherrima, Whitehead's Broadbill Calyptomena whiteheadi, Grey-chinned Minivet Pericrocotus solaris, Blue-winged Leafbird Chloropsis cochinchinensis (sub species flavocincta, described as full species by Inskipp et.al. 1996), Eyebrowed Jungle-flycatcher Rhinomyias gularis, Whitehead's Spiderhunter Arachnothera juliae, and ucommon upper mountain species Tawny-breasted Parrot finch Erythrura hyperythra.
Logging, forest clearence, infrastructure development. The military proposed to clear the forest along the boundary for security reason (Anon 1995, Colijn 2000).
Declared as a National Park (1360500 ha) based on SK Menhut No. 631/Kpts-II/96 (Anon 1998).
Habitat and land use
Habitat type include, lower mountain forest (50%), upper mountain forest (10%), lowland evergreen forest (20%), secondary forest and settlement (more least 20%).A big part of this area is used for conservation activity and watershed management. The remaining area is used for agriculture.
BirdLife International (2022) Important Bird Areas factsheet: Kayan Mentarang. Downloaded from
http://www.birdlife.org on 10/08/2022.