Exilisciurus exilis
Silhouette: Joseph Smit · PhyloPic
In 3 days ~60% in a week ~90%
The least pygmy squirrel (Exilisciurus exilis), also known as the plain pygmy squirrel, is a species of rodent in the family Sciuridae. This plain olive-brown squirrel is endemic to forests, mostly below an altitude of 750 m (2,500 ft) but locally significantly higher, on the Southeast Asian islands of Borneo, Sumatra and Banggi. Together with the African pygmy squirrel, the least pygmy squirrel is the smallest squirrel in the world, having a total length of 10–14 cm (3.9–5.5 in) and a weight of 12–26 g (0.42–0.92 oz). Wikipedia →
Call0:11
Malaysia · 2011
© Marc Anderson · XC1161598 · CC BY-NC-ND 4.0
Alarm call0:04
Malaysia · 2023
© Daan Drukker · XC959725 · CC BY-NC-ND 4.0
Recording0:07
Malaysia · 2013
© Peter de Rouw · Observation.org, Nature data from around the World · CC BY-NC-ND 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 2 | Kinabalu Park | 🇲🇾 Malaysia | |
| 3 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 4 | Sepilok | 🇲🇾 Malaysia |
Possible
About 30% of wildlife watchers report a Least Pygmy Squirrel sighting in Kinabatangan Wildlife Sanctuary on a given day, based on 32 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 14th most-seen of the 26 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.
May, October and December
In those months about 40% of wildlife watchers report a Least Pygmy Squirrel in Kinabatangan Wildlife Sanctuary on a given day, against under 5% in April, the lowest month.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most Least Pygmy Squirrel sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
3rd of 4
Of the 4 parks where we can rate Least Pygmy Squirrel sightings, Kinabatangan Wildlife Sanctuary ranks 3rd at about 30%. The best odds are in Danum Valley Conservation Area (Malaysia, about 40%) and Kinabalu Park (Malaysia, about 30%). All parks ranked.
Same family: Sciuridae
The closest relatives of the Least Pygmy Squirrel that you can see in Kinabatangan Wildlife Sanctuary (family Sciuridae, Squirrels) are Prevost's Squirrel (about 40%), Plantain Squirrel (about 30%) and Pale Giant Squirrel (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Least Pygmy Squirrel is recorded against all the mammals logged in Kinabatangan Wildlife Sanctuary (32 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.
