Northern Pig-tailed Macaque
Northern Pig-tailed MacaqueNorthern Pig-tailed MacaqueNorthern Pig-tailed MacaqueNorthern Pig-tailed Macaque

Northern Pig-tailed Macaque

Macaca leonina

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
70–80% · Very likely
overall probability at Khao Yai National Park
389 Verified records at Khao Yai National Park
January Best month highest sighting rate
🌅 Crepuscular When it's active at dawn and dusk

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. Wikipedia →

70–80% of wildlife watchers report a Northern Pig-tailed Macaque sighting in Khao Yai National Park, based on 389 days of visitor records from GBIF citizen-science data.

Closest Relatives at Khao Yai National Park

Crab-eating Macaque
EN Endemic

Crab-eating Macaque

🌅 Crepuscular Mammal

Macaca fascicularis

10–20% · With luck
Stump-tailed Macaque
VU

Stump-tailed Macaque

🌅 Crepuscular Mammal

Macaca arctoides

Insufficient data
Indochinese Gray Langur
EN

Indochinese Gray Langur

Mammal

Trachypithecus crepusculus

Insufficient data
Lar Gibbon
EN

Lar Gibbon

🌅 Crepuscular Mammal

Hylobates lar

60–70% · Likely
Pileated Gibbon
EN

Pileated Gibbon

🌅 Crepuscular Mammal

Hylobates pileatus

20–30% · Possible
Bengal Slow Loris
EN

Bengal Slow Loris

☀️ Diurnal Mammal

Nycticebus bengalensis

10–20% · With luck

📅 Monthly Probability

80–90
Jan
70–80
Feb
70–80
Mar
70–80
Apr
70–80
May
70–80
Jun
70–80
Jul
80–90
Aug
50–60
Sep
70–80
Oct
70–80
Nov
80–90
Dec

🌅 When They're Spotted

Most active at dawn and dusk · across all parks (global)

🌅Crepuscular
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Khao Yai National Park 🇹🇭 Thailand
70–80%
2 Cat Tien National Park 🇻🇳 Vietnam
30–40%
3 Khao Sok National Park 🇹🇭 Thailand
20–30%
4 Kaeng Krachan National Park 🇹🇭 Thailand
5–10%
5 Cuc Phuong National Park 🇻🇳 Vietnam
Insufficient data
6 Khao Luang National Park 🇹🇭 Thailand
Insufficient data

Quick answers

What are the chances of seeing a Northern Pig-tailed Macaque in Khao Yai National Park?

About 78% of wildlife watchers report a Northern Pig-tailed Macaque sighting in Khao Yai National Park, based on 389 days of visitor records from GBIF citizen-science data.

When is the best time to see Northern Pig-tailed Macaque in Khao Yai National Park?

January has the highest sighting rate for Northern Pig-tailed Macaque in Khao Yai National Park in our monthly data.

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