The Borneo Black-banded Squirrel (Callosciurus orestes) is a species of rodent

Rodent

Rodentia is an order of mammals also known as rodents, characterised by two continuously growing incisors in the upper and lower jaws which must be kept short by gnawing....

 in the Sciuridae family.
It is endemic to northern Borneo

Borneo

Borneo is the third largest island in the world and is located north of Java Island, Indonesia, at the geographic centre of Maritime Southeast Asia....

 .

Distribution

This species is found in northern Borneo at middle elevations (Payne et al. 1985). It was known from G. Dulit

Mount Dulit

Mount Dulit is a mountain in Borneo. It peaks at 1311 m above sea level and stands at the head of the Baram River in northern Sarawak, Malaysia. It is a western outlier of the Bornean cordillera and is largely covered with tropical rainforest...

 (above 1000m) and reported from similar altitude on Usun Apau, the Kelabit Uplands and the upper S. Terusan, all montane localities in northern Sarawak. It was also known from G. Kinabalu (1000-1700 m) and G. Trus Madi (about 1500 m) in Sabah. It appears to be restricted to lower montane forest and to upper dipterocarp forest.

Behaviour and Ecology

The upper part is finely speckled brown. A pale buffy spot behind each ears. The underside is grey, sometimes with a reddish tinge. It also has a black and buffy-white side stripe. Callosciurus orestes is diurnal. They are active in small to medium-sized trees. Recently, fruit and black ants were found out in the two species of G. Kinabalu.

Conservation status

Based on The UICN Red List Threatened Species, Callosciurus orestes is of Least Concern. It is listed as Least Concern as it is a middle montane species with a wide range. Some forest loss is occurring but not enough to list as Near Threatened.