Huia sumatrana
Silhouette: Michael Scroggie, from original photograph by John Bettaso, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~40% in a week ~70%
The Sumatran torrent frog (Wijayarana sumatrana) is a species of frog in the family Ranidae. It is endemic to Indonesia. The informally assigned common name for frogs in this genus (and for frogs in certain other genera) is torrent frog.
Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, and rivers. It is threatened by habitat loss. Sumatran torrent frog has recessed tympanal membrane, which suggest that it is able to hear high-frequency sounds. 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 Sumatra Huia Frog 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 8th most-seen of the 11 amphibians 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.
October and November
In those months about 30% of wildlife watchers report a Sumatra Huia Frog in Gunung Leuser National Park on a given day, against under 5% in March, May, July–September and December, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Sumatra Huia 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 Gunung Leuser National Park, in our data
Gunung Leuser National Park is the only park on Wallace's Line with enough records to rate Sumatra Huia Frog sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Ranidae
The closest relatives of the Sumatra Huia Frog that you can see in Gunung Leuser National Park (family Ranidae, Typical Frogs) are Poisonous Rock Frog (about 30%), North Sumatra White-lipped Frog (about 20%) and Green Paddy Frog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sumatra Huia Frog is recorded against all the amphibians 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.
