Trachypithecus pileatus
Silhouette: Andy Wilson · PhyloPic
In 3 days ~90% in a week >90%
The capped langur (Trachypithecus pileatus) is a primate species in the family Cercopithecidae native to subtropical and tropical dry forests in northeast India, Bhutan, Bangladesh and Myanmar. It is arboreal and feeds on 43 plant species.
The capped langur was described by Edward Blyth in 1843. T. p. tenebricus The capped langur occurs in northeast India, Bhutan, Bangladesh and Myanmar, where it inhabits subtropical and tropical dry forests. Capped langurs observed in Arunachal Pradesh spent nearly 40% of the day time feeding on leaves, flowers and fruits. Leaves contributed nearly 60% of the diet, and they foraged on as many as 43 different plant species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manas National Park | 🇮🇳 India | |
| 2 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 3 | Kaziranga National Park | 🇮🇳 India |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Bangladesh National Zoo | 🇧🇩 Bangladesh |
Likely
About 50% of wildlife watchers report a Capped Langur sighting in Royal Manas National Park on a given day, based on 44 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 2nd most-seen of the 11 mammals we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
January and July
In those months about 70% of wildlife watchers report a Capped Langur in Royal Manas National Park on a given day, against about 10% in June, the lowest month. Those are among Royal Manas National Park's wettest months, with about 480 mm of rain a month against 10 mm in December. September has too few records to rate.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Capped Langur sightings with a recorded time, and about 6 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 Capped Langur sightings, Royal Manas National Park ranks 2nd at about 50%, level with the leaders once rounded. The best odds are in Manas National Park (India, about 50%).
GBIF citizen-science records
It is estimated from how often the Capped Langur is recorded against all the mammals logged in Royal Manas National Park (44 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.
