Brown Tree Frog

Brown Tree Frog

Leptomantis harrissoni

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability Insufficient data
at Sepilok
1 Verified sightings at Sepilok From 2019 to 2026
26 Verified sightings across all 4 parks From 2019 to 2026
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Brown Tree Frog

Leptomantis harrissoni, common name Harrisson's flying frog or brown tree frog, is a species of frog in the family Rhacophoridae. It is endemic to northern Borneo. This species is widely distributed in northern Borneo and occurs in Sarawak and Sabah (Malaysia), Brunei, and northern Kalimantan (Indonesia).

Its natural habitat is primary or old secondary lowland rainforests in both flat and hilly terrain below 350 m of elevation. It is threatened by habitat loss. Leptomantis harrissoni can reach a length of about 50 millimetres (2.0 in) in males, of about 70 millimetres (2.8 in) in females. These medium-sized frogs have an angular and pointed snout and well developed dark hand webbing. They are basically brown.

Tadpoles can reach a length of about 40 millimetres (1.6 in), They have a well developed and rather pointed tail fin, an ovoid body and a short snout. The basic color is dark brown. Leptomantis harrissoni spends most of its life high up in the forest. Males call for breeding in water-containing holes located in the trunks of trees. Eggs are laid in a foam nest attached to the bark above said tree holes.

These frogs... Wikipedia →

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Daily sighting probability
1 Danum Valley Conservation Area 🇲🇾 Malaysia
~30%
2 Kinabatangan Wildlife Sanctuary 🇲🇾 Malaysia
~10%
3 Kinabalu Park 🇲🇾 Malaysia
Insufficient data
4 Sepilok 🇲🇾 Malaysia
Insufficient data
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