Southern Black Giant Squirrel

Identification

The black giant squirrel is one of the world's largest squirrel species, weighing 1.05–1.25 kg (2.3–2.8 lb) with a head-and-body length of 34–37 cm (13–15 in) and a distinctly bushy tail measuring 41–42 cm (16–17 in). The species is characteristically bicoloured: the back, head, ears, and tail are deep brown to black, while the underparts are light buff. Regional variations occur—populations in Sumatra, Java, and Bali display light-tipped hairs on the back and tail, creating a relatively paler appearance, while individuals from small islands off Myanmar and the Strait of Malacca feature orange to reddish-yellowish underparts.

Range & Habitat

This giant squirrel inhabits forested regions across the Indomalayan zoogeographic zone, from northern Bangladesh, northeast India, eastern Nepal, Bhutan, and southern China, through Myanmar, Laos, and Thailand, to West Malaysia, Cambodia, Vietnam, and western Indonesia including Java, Sumatra, Bali, and nearby islands. It occupies elevations from sea level to at least 2,500 m (8,200 ft). In South Asia, it prefers tropical and subtropical coniferous and broadleaf forests, while in Southeast Asia it favours tropical broadleaf evergreen and semi-evergreen forests. In the rainforests of the Malay Peninsula and Indonesia, populations are less abundant, likely due to competition with primates and other arboreal species for canopy resources. Habitat loss from human settlement, timber harvesting, and agriculture has resulted in approximately 30% population decline in the past decade in some areas.

Behaviour & Diet

The black giant squirrel is diurnal and primarily arboreal, though it occasionally descends to the forest floor to feed. It is solitary by nature and rarely enters plantations or human settlements, preferring pristine forest environments. Its diet comprises seeds, pine cones, fruits, and leaves. Breeding females raise litters of 1–2 young in dreys, typically constructed within hollow tree cavities.

Best Time & Places to See It

The black giant squirrel is best observed during daylight hours in undisturbed forested habitats. Notable locations include Kaziranga National Park in Assam, India, and the lower ranges of Neora Valley National Park near Kalimpong, India, where several populations are established. The species is present across its range from lowland to montane elevations, though habitat degradation continues to threaten its distribution.

Photography Tips

Patience and early morning visits to primary forest areas offer the best photographic opportunities for this canopy-dwelling species. Position yourself with a clear view of tall trees and watch for movement in the upper branches. The striking contrast between dark upperparts and pale underparts creates excellent compositional possibilities. Use a longer telephoto lens to capture detail without disturbing this wary, forest-interior specialist. The bushy tail is a distinctive feature worth emphasizing in your images.