Leptobrachella gracilis
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~90% in a week >90%
Leptobrachella gracilis, commonly called the slender litter frog, is a frog species in the family Megophryidae. It is endemic to northern Borneo: Brunei, Kalimantan (Indonesia), and Sarawak (Malaysia). Earlier records from the Malay Peninsula and Thailand refer to other species (at least Leptobrachella platycephala, an unnamed species, and possibly Leptobrachella melanoleuca). Its natural habitats are tropical moist lowland forests, moist montane forests, and rivers. It is becoming rare due to habitat loss.
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kubah National Park | 🇲🇾 Malaysia |
More parks will be added in future updates.
Likely
About 60% of wildlife watchers report a Sarawak Slender Litter Frog sighting in Kubah National Park on a given day, based on 56 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 10th most-seen of the 41 amphibians we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
April, August–September and November
In those months about 70% of wildlife watchers report a Sarawak Slender Litter Frog in Kubah National Park on a given day, against about 10% in January–February and May, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Sarawak Slender Litter Frog sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Kubah National Park, in our data
Kubah National Park is the only park on Wallace's Line with enough records to rate Sarawak Slender Litter Frog sightings: about 60% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Sarawak Slender Litter Frog is recorded against all the amphibians logged in Kubah National Park (56 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.
