Macaca assamensis
Silhouette: PhyloPic
In 3 days ~60% in a week ~90%
The Assam macaque (Macaca assamensis) or Assamese macaque is a macaque of the Old World monkey family native to South and Southeast Asia. Since 2008, it has been listed as Near Threatened on the IUCN Red List, as it is experiencing significant declines due to poaching, habitat degradation, and fragmentation.
The Assam macaque has a yellowish-grey to dark brown pelage. The facial skin is dark brownish to purplish. The head has a dark fringe of hair on the cheeks directed backwards to the ears. The hair on the crown is parted in the middle. The shoulders, head and arms tend to be paler than the hindquarters, which are greyish. The tail is well-haired and short. Head-to-body-length measures 51 to 73.5 cm (20.1 to 28.9 in), and the tail is 15 to 30 cm (5.9 to 11.8 in) long. Adult weight is 5 to 10 kg (11 to 22 lb).
In Nepal, the Assam macaque occurs east of the Kali Gandaki river at elevations of 200–1,800 m (660–5,910 ft). In northeastern India, it lives in tropical and subtropical semievergreen forests, dry deciduous and montane forests up to elevations of 4,000 m (13,000 ft). In Laos and Vietnam, it prefers elevations above 500 m... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Namdapha National Park | 🇮🇳 India | |
| 2 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 3 | Langtang National Park | 🇳🇵 Nepal |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Nanning Zoo | 🇨🇳 China |
Possible
About 30% of wildlife watchers report an Assam Macaque sighting in Langtang National Park on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 6th most-seen of the 8 mammals we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
June
In that month about 50% of wildlife watchers report an Assam Macaque in Langtang National Park on a given day, against about 10% in August–September and December–January, the lowest months. That is one of Langtang National Park's wettest months, with about 220 mm of rain against 10 mm in November.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Assam Macaque sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
3rd of 3
Of the 3 parks where we can rate Assam Macaque sightings, Langtang National Park ranks 3rd at about 30%. The best odds are in Namdapha National Park (India, about 40%) and Royal Manas National Park (Bhutan, about 40%).
GBIF citizen-science records
It is estimated from how often the Assam Macaque is recorded against all the mammals logged in Langtang National Park (19 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
