Emballonura monticola
Silhouette: T. Michael Keesey · PhyloPic
In 3 days ~40% in a week ~70%
The lesser sheath-tailed bat (Emballonura monticola) is a species of sac-winged bat in the family Emballonuridae. It is found in the Malay Peninsula (including Myanmar and Thailand), Borneo, and many other parts of the Indonesian Archipelago including Sulawesi, Java, and Sumatra. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Gunung Leuser National Park | 🇮🇩 Indonesia |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a lesser sheath-tailed bat sighting in Gunung Leuser National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 15th most-seen of the 19 mammals we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
February, August and October
In those months about 30% of wildlife watchers report a lesser sheath-tailed bat in Gunung Leuser National Park on a given day, against under 5% in April–July, September and November–December, the lowest months.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most lesser sheath-tailed bat sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Only Gunung Leuser National Park, in our data
Gunung Leuser National Park is the only park on Wallace's Line with enough records to rate lesser sheath-tailed bat sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the lesser sheath-tailed bat is recorded against all the mammals logged in Gunung Leuser National Park (6 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.
