Zhangixalus dulitensis
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~30% in a week ~50%
The jade tree frog or Dulit flying frog (Zhangixalus dulitensis) is a species of frog in the family Rhacophoridae found in northern Borneo. Its natural habitats are subtropical or tropical moist lowland forests and intermittent freshwater marshes. It is becoming rare due to habitat loss.
This frog is very common but rarely spotted by humans because it lives high in the canopy. The frogs descend to the ground when it is time to breed. This frog has been observed no higher than 300 meters above sea level. The IUCN classifies this frog as at least concern of extinction because of its large population. Humans pose some threat through deforestation associated with palm oil agriculture. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 2 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia |
With luck
About 10% of wildlife watchers report a Dulit Flying Frog sighting in Kinabatangan Wildlife Sanctuary on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 17th most-seen of the 20 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
March, August and December
In those months about 20% of wildlife watchers report a Dulit Flying Frog in Kinabatangan Wildlife Sanctuary on a given day, against under 5% in January–February, April–July and September–November, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Dulit Flying Frog sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Dulit Flying Frog sightings, Kinabatangan Wildlife Sanctuary ranks 2nd at about 10%. The best odds are in Danum Valley Conservation Area (Malaysia, about 20%).
Same family: Rhacophoridae
The closest relatives of the Dulit Flying Frog that you can see in Kinabatangan Wildlife Sanctuary (family Rhacophoridae, Old World Tree Frogs) are Chasen's Frilled Tree Frog (about 30%), Harlequin Tree Frog (about 30%) and Brown-Striped Tree Frog (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dulit Flying Frog is recorded against all the amphibians logged in Kinabatangan Wildlife Sanctuary (5 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.
