This area is located between Balikpapan and Samarinda and has been damaged by forest fire. Beside that, exotic species introduction and conversion for agriculture, mainly pepper, present in this area. There is Orang Utan Rehabilitation Research Centre in Wanariset. Although the area have low conservation value, but it has been reported that important species from Wanariset and Wain River are present (see Holmes 1997), including some common species that usually unrecord at low altitude.
The vulnerable Crestless Fireback Lophura erythropthalma recorded on this site. Other species possibly live in this site (Holmes 1997) are Bornean Bristlehead Pityriasis gymnocephala, Striped Wren-babbler Kenopia striata, White-bellied Yuhinia Yuhinia zantholeuca, Verditer Flycatcher Eumyias thalassina and Bornean Blue-flycatcher Cyornis superbus.
BirdLife International (2023) Important Bird Areas factsheet: Hutan Samarinda-Balikpapan. Downloaded from http://www.birdlife.org on 05/02/2023.