JAKARTA, March 29 (Xinhua) -- Two new bird species have been identified in the forest of the isolated Meratus mountains range at Indonesia's second-largest island of Kalimantan, the National Research and Innovation Agency (BRIN) said on Tuesday.

       The BRIN recommends that the International Union for Conservation of Nature (IUCN) Red List classify both species as "vulnerable."

       A researcher from the BRIN's Biosystematics and Evolutionary Research Center, Mohammad Irham, said that one of them is Zosterops Meratusensis, with the local name Kacamata Meratus, in olive green with a yellowish pattern on the lower body.

       The other one is Cyornis Kadayangensis, or locally known as Sikatan Kadayang, in a blue upper body and a combination of brown, orange, and white on the bottom.

       Surrounded by lowland secondary forests that were degraded by land conversion for agriculture, the isolated Meratus mountains range forms a unique fauna community as seen in bird groups, Irham said.

       He emphasized the importance of conserving animals in the Meratus mountains range, which are threatened by extinction due to habitat changes and hunting activities by humans.