Gonocephalus bornensis
Silhouette: Michael Scroggie · PhyloPic
In 3 days >90%
Gonocephalus bornensis, the Borneo anglehead lizard or Borneo forest dragon, is an agamid lizard endemic to Borneo in Indonesia and Malaysia, and known from Sabah, Kinabalu, Brunei, Sarawak and Kalimantan. Moderately long (SVL up to 136 mm). Males generally larger than females (SVL= 118-136 vs. 90–130 mm; Tail Length=261-310 vs. 215–275 mm). Circular border on supercilium. Tympanum rather small. Weakly granular dorsum with a prominent lanceolate crest starting on neck and terminating on lower back. Tail is almost cylindrical.
Sub-adult males are generally brown, olive and green on dorsum with laterals, often with dark reticulations. Adult males are predominantly green with indistinct reticulation. Iris deep brown or light blue. Females rust red dorsolaterally with oval spots formed from reticulations on the sides of body.
Is endemic to Borneo. Found commonly in Mount Kinabalu, Poring Hot Spring in Sabah, also found in Brunei, Sarawak and Kalimantan. Found in primary and secondary rainforests up to 700 m (2,300 ft) a.s.l. Arboreal in habit, they live in tree trunks and on lianas often near streams. They deposit... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 2 | Kinabalu Park | 🇲🇾 Malaysia | |
| 3 | Sepilok | 🇲🇾 Malaysia |
Very likely
About 70% of wildlife watchers report a Borneo Forest Dragon sighting in Danum Valley Conservation Area on a given day, based on 128 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the most-seen of the 35 reptiles we can rate there. Over three days the chance rises to over 90%, if each day is a fresh chance.
December
In that month about 90% of wildlife watchers report a Borneo Forest Dragon in Danum Valley Conservation Area on a given day, against about 60% in April–June and September, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Borneo Forest Dragon sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 parks where we can rate Borneo Forest Dragon sightings, Danum Valley Conservation Area has the highest daily chance: about 70%. Next come Kinabalu Park (Malaysia, about 50%) and Sepilok (Malaysia, about 30%).
GBIF citizen-science records
It is estimated from how often the Borneo Forest Dragon is recorded against all the reptiles logged in Danum Valley Conservation Area (128 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.
