Hylobates pileatus
Silhouette: Kai R. Caspar · PhyloPic
In 3 days ~60% in a week ~90%
The pileated gibbon (Hylobates pileatus) is a primate in the gibbon family, Hylobatidae. The pileated gibbon has sexual dimorphism in fur coloration: males have purely black fur, while females have buff-coloured or white-grey fur with only the belly and head black. The white and often shaggy hair ring around the head is common to both sexes.
The species has been identified as endangered and is listed in CITES Appendix I. Their main threat is habitat destruction, with the natural forest they live in being converted into farmland. This has led to local extinction in some areas. Also, like many other primate species, they are hunted and captured for meat and sold into wildlife smuggling. Many attempts have been made to survey and increase the species' numbers, both concerning their status in the wild, and in zoos.
The range of the pileated gibbon is eastern Thailand, western Cambodia and southwest Laos. Its lifestyle is much like other gibbons: diurnal and arboreal, it lives together in a monogamous pair, brachiates through the trees with its long arms, and predominantly eats fruits, leaves and small animals. Reproduction habits are not well known, but are presumed to be similar... Wikipedia →
Call0:20
Thailand · 2024
© GABRIEL LEITE · XC1091560 · CC BY-NC-SA 4.0
Duet0:20
Thailand · 2016
© Marc Anderson · XC960736 · CC BY-NC-ND 4.0
Recording0:22
Thailand · 2026
© Amaël Borzée · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Phnom Tamao Wildlife Rescue Centre | 🇰🇭 Cambodia | |
| 2 | Zoo and Botanical Garden of Branféré | 🇫🇷 France | |
| 3 | Wildlife World Zoo | 🇺🇸 United States | |
| 4 | Nanning Zoo | 🇨🇳 China | |
| 5 | Colchester Zoo | 🇬🇧 United Kingdom | |
| 6 | Twycross Zoo | 🇬🇧 United Kingdom | |
| 7 | Parc Zoologique et Botanique de Mulhouse | 🇫🇷 France | |
| 8 | Langenberg Wildlife Park | 🇨🇭 Switzerland | |
| 9 | Saigon Zoo and Botanical Gardens | 🇻🇳 Vietnam | |
| 10 | Łódź Zoo | 🇵🇱 Poland | |
| 11 | Johor Zoo | 🇲🇾 Malaysia | |
| 12 | Aquarium Barcelona | 🇪🇸 Spain |
Possible
About 30% of wildlife watchers report a Pileated Gibbon sighting in Khao Yai National Park on a given day, based on 48 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 13th most-seen of the 24 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 and October–November
In those months about 40% of wildlife watchers report a Pileated Gibbon in Khao Yai National Park on a given day, against under 5% in April and August–September, the lowest months.
Between 4 and 7 am
Across all the parks we cover, that three-hour window holds the most Pileated Gibbon sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Only Khao Yai National Park, in our data
Khao Yai National Park is the only park on Wallace's Line with enough records to rate Pileated Gibbon sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Pileated Gibbon is recorded against all the mammals logged in Khao Yai National Park (48 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.
