Slender Squirrel

Slender Squirrel

Sundasciurus tenuis

Silhouette: Joseph Smit · PhyloPic

LCLeast ConcernNTVUENCR
Daily sighting probability ~20% · Possible
at Khao Luang National Park

In 3 days ~50% in a week ~80%

12 Verified sightings at Khao Luang National Park From 2019 to 2026
27 In all 3 parks
August Best month
🌅 Crepuscular When it's spotted

About the Slender Squirrel

The slender squirrel (Sundasciurus tenuis) is a species of rodent in the family Sciuridae. It is arboreal and found in Indonesia, Singapore, Malaysia, and Thailand. The body is brown on the upper parts and light grey on the underparts. The body measures about 13–16 cm, with a slightly shorter slender tail. It feeds on soft bark, fruits and insects.

Ecology Asia photos and description Wikipedia →

Sounds

Alarm call0:20

Singapore · 2021

© Ding Li Yong · XC964167 · CC BY-NC-ND 4.0

Uncertain0:35

Singapore · 2026

© Joan Theng · XC1176704 · CC BY-NC-SA 4.0

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Khao Luang National Park 🇹🇭 Thailand
~20%
2 Taman Negara National Park 🇲🇾 Malaysia
~20%
3 Gunung Leuser National Park 🇮🇩 Indonesia
~10%

Cities Where Found

# City Country Daily sighting probability
1 Singapore 🇸🇬 Singapore
~20%
2 Kuala Lumpur 🇲🇾 Malaysia
~10%

Before you go

What are the chances of seeing a Slender Squirrel in Khao Luang National Park?

Possible

About 20% of wildlife watchers report a Slender Squirrel sighting in Khao Luang National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.

When is the best time to see a Slender Squirrel in Khao Luang National Park?

August

In that month about 40% of wildlife watchers report a Slender Squirrel in Khao Luang National Park on a given day, against under 5% in March, May–June and September–December, the lowest months.

What time of day is best to see a Slender Squirrel?

Between 3 and 6 am

Across all the parks we cover, that three-hour window holds the most Slender Squirrel sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.

Is Khao Luang National Park the best place to see a Slender Squirrel?

Yes

Of the 3 parks where we can rate Slender Squirrel sightings, Khao Luang National Park has the highest daily chance: about 20%. Next come Taman Negara National Park (Malaysia, about 20%) and Gunung Leuser National Park (Indonesia, about 10%).

Which relatives of the Slender Squirrel live in Khao Luang National Park?

Same family: Sciuridae

The closest relatives of the Slender Squirrel that you can see in Khao Luang National Park (family Sciuridae, Squirrels) are Himalayan Striped Squirrel (about 40%) and Black Giant Squirrel (about 30%), with each one's daily chance of a sighting.

Where does the Slender Squirrel sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Slender Squirrel is recorded against all the mammals logged in Khao Luang National Park (12 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.

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