Macaca leonina
Silhouette: PhyloPic
In 3 days ~60% in a week ~90%
The northern pig-tailed macaque (Macaca leonina) is a vulnerable species of macaque in the subfamily Cercopithecidae. It is found in Bangladesh, Cambodia, China, India, Laos, Myanmar, Thailand, and Vietnam. Traditionally, M. leonina was considered a subspecies of the southern pig-tailed macaque (M. nemestrina), but is now classified as an individual species. In the 21st century, the pig-tailed macaque was split into the northern pig-tailed macaque species Macaca leonina and the Sundaland pig-tailed macaque species M. nemestrina. This reclassification was aided by the observation of sexual swellings and basic attributes that distinguish the two. The northern pig-tailed macaque is frugivorous and their social grouping is matriarchal, where sexual dimorphic traits can distinguish males and females. Their adaptation to omnivorous diets occur in periods of fruit scarcity, munching on wild vegetation and crops, human foods, and small insects and mammals. Despite their adaptability, northern-pig tailed macaques experience viral threats such as the human immunodeficiency virus type 1, pathogenic simian immunodeficiency, and coronavirus. Human impacts are also present, such as agricultural expansions, aquaculture, transportation infrastructure, hunting and logging for meat and trophies, and the illegal pet trade; that result in habitat loss, forest fragmentation, and a reduced well-being. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Khao Sok National Park | 🇹🇭 Thailand | |
| 3 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 4 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Parque Temático Hacienda Nápoles | 🇨🇴 Colombia | |
| 2 | Beijing Wildlife Park | 🇨🇳 China | |
| 3 | Khao Kheow Open Zoo | 🇹🇭 Thailand | |
| 4 | 西霞口神雕山野生動物世界 | 🇨🇳 China | |
| 5 | Thailand Tiger Rescue Center | 🇹🇭 Thailand | |
| 6 | Saigon Zoo and Botanical Gardens | 🇻🇳 Vietnam | |
| 7 | King's Garden | 🇻🇳 Vietnam | |
| 8 | 黔灵山动物园 | 🇨🇳 China | |
| 9 | Bangkok Aquarium | 🇹🇭 Thailand |
Possible
About 30% of wildlife watchers report a Northern Pig-tailed Macaque sighting in Cat Tien National Park on a given day, based on 59 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 13th 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.
October
In that month about 50% of wildlife watchers report a Northern Pig-tailed Macaque in Cat Tien National Park on a given day, against under 5% in May and September, the lowest months. That is one of Cat Tien National Park's wettest months, with about 330 mm of rain against 15 mm in February.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Northern Pig-tailed Macaque sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 4
Of the 4 parks where we can rate Northern Pig-tailed Macaque sightings, Cat Tien National Park ranks 3rd at about 30%. The best odds are in Khao Yai National Park (Thailand, about 80%) and Khao Sok National Park (Thailand, about 30%).
GBIF citizen-science records
It is estimated from how often the Northern Pig-tailed Macaque is recorded against all the mammals logged in Cat Tien National Park (59 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.
