Presbytis robinsoni
Silhouette: PhyloPic
In 3 days ~30% in a week ~60%
Robinson's banded langur (Presbytis robinsoni), also known as Robinson's banded surili, is a species of monkey in the family Cercopithecidae. It was formerly considered a subspecies of the Raffles' banded langur Presbytis femoralis, but genetic analysis revealed that it is no more related to Raffles' banded langur than it is to several other Presbytis species. It lives in the northern Malay Peninsula, including southern Burma and Thailand. It is listed as near threatened by the IUCN. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 2 | Khao Sok National Park | 🇹🇭 Thailand |
With luck
About 10% of wildlife watchers report a Robinson’s Banded Langur sighting in Khao Sok National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 12th most-seen of the 14 mammals we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
February
In that month about 30% of wildlife watchers report a Robinson’s Banded Langur in Khao Sok National Park on a given day, against under 5% in January and May–November, the lowest months. That is one of Khao Sok National Park's driest months, with about 35 mm of rain against 280 mm in October.
Between 4 and 7 am
Across all the parks we cover, that three-hour window holds the most Robinson’s Banded Langur sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
2nd of 2
Of the 2 parks where we can rate Robinson’s Banded Langur sightings, Khao Sok National Park ranks 2nd at about 10%. The best odds are in Kaeng Krachan National Park (Thailand, about 30%).
Same family: Cercopithecidae
The closest relatives of the Robinson’s Banded Langur that you can see in Khao Sok National Park (family Cercopithecidae, Old World Monkeys) are Crab-eating Macaque (about 70%), Dusky Leaf-monkey (about 60%) and Northern Pig-tailed Macaque (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Robinson’s Banded Langur is recorded against all the mammals logged in Khao Sok National Park (9 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.
