Hebius flavifrons
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~50% in a week ~80%
The Sabah keelback (Hebius flavifrons) is a nonvenomous colubrid endemic to Borneo. Adults are about 54 cm (21 inches) in total length, of which about 18 cm (7 inches) is tail. Body slender; midbody scales 19, keeled; ventrals 149–157; subcaudals 92–101; dorsum olive-grey, with darker markings; a distinctive white to yellowish-cream spot on snout.
It is frequently encountered in rivers in the plains and midhills, seen swimming with its head held out of water. Its diet includes frog eggs, tadpoles and frogs. Nothing is known about its reproductive biology. It is endemic to Borneo. It has been found in Brunei, Sabah and Sarawak. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kinabalu Park | 🇲🇾 Malaysia |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Sabah Keelback sighting in Kinabalu Park on a given day, based on 23 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 33rd most-seen of the 69 reptiles we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
February, May and November
In those months about 30% of wildlife watchers report a Sabah Keelback in Kinabalu Park on a given day, against under 5% in September and October, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Sabah Keelback sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Kinabalu Park, in our data
Kinabalu Park is the only park on Wallace's Line with enough records to rate Sabah Keelback sightings: about 20% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Sabah Keelback is recorded against all the reptiles logged in Kinabalu Park (23 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.
