Macaca assamensis
Silhouette: PhyloPic
In 3 days ~80% 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 |
Likely
About 40% of wildlife watchers report an Assam Macaque sighting in Royal Manas National Park on a given day, based on 25 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 3rd most-seen of the 11 mammals we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
April and November
In those months about 50% of wildlife watchers report an Assam Macaque in Royal Manas National Park on a given day, against under 5% in December, the lowest month. Those are among Royal Manas National Park's driest months, with about 110 mm of rain a month against 930 mm in July. September has too few records to rate.
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.
Among the best
Of the 3 parks where we can rate Assam Macaque sightings, Royal Manas National Park ranks 2nd at about 40%, level with the leaders once rounded. The best odds are in Namdapha National Park (India, about 40%).
Same family: Cercopithecidae
The closest relatives of the Assam Macaque that you can see in Royal Manas National Park (family Cercopithecidae, Old World Monkeys) are Gee's Golden Langur (about 70%) and Capped Langur (about 50%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Assam Macaque is recorded against all the mammals logged in Royal Manas National Park (25 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.
