Silvered Leaf Monkey

Silvered Leaf Monkey

Trachypithecus cristatus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~30% · Possible
at Gunung Leuser National Park
40 Verified sightings at Gunung Leuser National Park From 2019 to 2026
440 Verified sightings across all 8 parks From 2019 to 2026
September Best month highest sighting rate
🌅 Crepuscular When it's spotted at dawn and dusk

About the Silvered Leaf Monkey

The silvery lutung (Trachypithecus cristatus), also known as the silvered leaf monkey or the silvery langur, is an Old World monkey. It is arboreal, living in coastal, mangrove, and riverine forests in Sumatra, Borneo, Java, as well as in parts of the southwestern Malay Peninsula, the Natuna Islands, and other nearby islands. It is the type species of its species group.

The silvery lutung is a medium-sized monkey with a long, non-prehensile tail. It has grey-tipped, dark brown or black fur, giving it a uniform silvery appearance. Unlike some related species, there are no paler markings on the face or body, except for a patch of whitish hair on the groin of females. A crest of fur runs along the top of the head, and the hair on the cheeks is long, often obscuring the ears. The hands and feet are hairless, with dark-coloured skin, and have opposable thumbs and toes.

Females range from 46 to 51 centimetres (18 to 20 in) in head-body length, with an average weight of 5.7 kilograms (13 lb) and a tail length of 67 to 75 centimetres (26 to 30 in). Males are slightly larger, from 50 to 58 centimetres (20 to 23 in) in length, with an average weight of 6.6 kilograms (15 lb... Wikipedia →

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 Daily sighting probability
1 Kinabatangan Wildlife Sanctuary 🇲🇾 Malaysia
~70%
2 Bako National Park 🇲🇾 Malaysia
~70%
3 Tanjung Puting National Park 🇮🇩 Indonesia
~40%
4 Gunung Leuser National Park 🇮🇩 Indonesia
~30%
5 Kerinci Seblat National Park 🇮🇩 Indonesia
~20%
6 Way Kambas National Park 🇮🇩 Indonesia
Insufficient data
7 Danum Valley Conservation Area 🇲🇾 Malaysia
Insufficient data
8 Sepilok 🇲🇾 Malaysia
Insufficient data

Quick answers

What are the chances of seeing a Silvered Leaf Monkey in Gunung Leuser National Park?

About 30% of wildlife watchers report a Silvered Leaf Monkey sighting in Gunung Leuser National Park, based on 40 verified sightings from GBIF citizen-science data.

When is the best time to see Silvered Leaf Monkey in Gunung Leuser National Park?

September has the highest sighting rate for Silvered Leaf Monkey in Gunung Leuser National Park in our monthly data.

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