Trachypithecus margarita
Silhouette: Andy Wilson · PhyloPic
In 3 days ~60% in a week ~90%
The Annamese langur (Trachypithecus margarita) is an Old World monkey from the Colobinae subfamily. It was formerly considered a subspecies of Trachypithecus germaini until it was elevated to a separate species by Roos and Groves in 2008. Its fur is lighter in colour than that of Trachypithecus germaini. Its range includes parts of Cambodia, Laos and Vietnam. Wikipedia →
Recording0:09
Vietnam · 2024
© sucker69420 · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cat Tien National Park | 🇻🇳 Vietnam |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ho Chi Minh City | 🇻🇳 Vietnam |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Saigon Zoo and Botanical Gardens | 🇻🇳 Vietnam |
Possible
About 30% of wildlife watchers report an Annamese Langur sighting in Cat Tien National Park on a given day, based on 22 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 16th most-seen of the 28 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.
April, July and November
In those months about 40% of wildlife watchers report an Annamese Langur in Cat Tien National Park on a given day, against under 5% in August and October, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Annamese 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.
Only Cat Tien National Park, in our data
Cat Tien National Park is the only park on Wallace's Line with enough records to rate Annamese Langur sightings: about 30% of wildlife watchers there report one on a given day.
Same family: Cercopithecidae
The closest relatives of the Annamese Langur that you can see in Cat Tien National Park (family Cercopithecidae, Old World Monkeys) are Black-shanked Douc Langur (about 60%), Crab-eating Macaque (about 30%) 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 Annamese Langur is recorded against all the mammals logged in Cat Tien National Park (22 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.
