The Philippine tree squirrel can be found at elevations up to 2,100 meters, such as on Mt. Hamiguitan, located at the Pujada Peninsula within the Eastern Mindanao Biodiversity Corridor in Davao Oriental, which was designated as the country’s sixth World Heritage site in June 2014. Aside from the Philippine tree squirrel, other wild endemic fauna like the Hamiguitan hairy-tailed rat, Philippine palm civet, Philippine field rat, the Mindanao wild pig, and the Philippine deer call it home alongside the Philippine eagle, the Mindanao bleeding heart dove, the Philippine cockatoo, and the rare Delias magsadana butterfly. They can be found in tree cavities, or high up in the trees in spherical nests constructed out of twigs, leaves, and shredded bark. Squirrel nests are called “dreys”, and are often built in tree crotches about 30 to 45 feet above ground.