They populate three of the four major islands in the chain (North Pagai, South Pagai and Sipura). Due to deforestation by immigrants from the Indonesian mainland, the species is now listed as critically endangered on the IUCN red list.
The species inhabit three major islands in the chain (North Pagai, South Pagai, and Sipura). Due to deforestation caused by settlers from the Indonesian mainland, the species is now considered critically endangered according to the IUCN red list.