Hoolock hoolock

Western Hoolock Gibbon

MammalBest Season: Jan–Dec

Best locations

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Field Reports (12 months)

About this species

India's only ape and one of its most endangered primates, the Western Hoolock Gibbon fills Northeast India's forests with haunting duet calls at dawn. Pairs swing acrobatically through the forest canopy. Gibbon Wildlife Sanctuary in Assam — named after this species — is the most accessible location for sightings. Hear and see Hoolock Gibbons in Assam. India's only ape — dawn chorus safaris, conservation status, and wildlife tour guides.

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Best locations for Western Hoolock Gibbon

Reserves and landscapes where our photographers reliably encounter this species, with links to place-specific guides.

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Namdapha National Park

Arunachal Pradesh, India

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Upcoming Trips Targeting Western Hoolock Gibbon

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When and Where to Photograph Western Hoolock Gibbon

Plan field days around Jan–Dec: light is often strongest at dawn and dusk, when many mammals and birds are most active. Work with a naturalist who knows local movement patterns — they will position you ethically while improving your odds of a encounter in Namdapha National Park.

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