Calamaria grabowskyi
Silhouette: Mason McNair · PhyloPic
In 3 days ~50% in a week ~80%
Calamaria grabowskyi, also known commonly as Grabowsky's dwarf snake and Grabowsky's reed snake, is a species of snake in the subfamily Calamariinae of the family Colubridae. The species is endemic to the island of Borneo in Maritime Southeast Asia.
The specific name, grabowskyi, is in honor of biologist Friedrich J. Grabowsky, who worked in Borneo and New Guinea in the 1880s. On the island of Borneo, Calamaria grabowskyi is found in the countries of Brunei, Indonesia, and Malaysia.
The preferred natural habitat of Calamaria grabowskyi is forest, at elevations below 1,500 m (4,900 ft). Females of Calamaria grabowskyi may attain a total length (tail included) of about 47 cm (19 in). Males are smaller and may attain a total length of about 37 cm (15 in).
Calamaria grabowskyi is a terrestrial species which lives in the leaf litter of the forest. Calamaria grabowskyi is oviparous. Boulenger GA (1894). Catalogue of the Snakes in the British Museum (Natural History). Volume II., Containing the Conclusion of the Colubridæ Aglyphae. London: Trustees... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Danum Valley Conservation Area | 🇲🇾 Malaysia |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Grabowsky's Reed Snake sighting in Danum Valley Conservation Area on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 20th most-seen of the 35 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.
August
In that month about 40% of wildlife watchers report a Grabowsky's Reed Snake in Danum Valley Conservation Area on a given day, against under 5% in April, July and November–February, the lowest months.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most Grabowsky's Reed Snake sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Danum Valley Conservation Area, in our data
Danum Valley Conservation Area is the only park on Wallace's Line with enough records to rate Grabowsky's Reed Snake sightings: about 20% of wildlife watchers there report one on a given day.
Same family: Colubridae
The closest relatives of the Grabowsky's Reed Snake that you can see in Danum Valley Conservation Area (family Colubridae, Colubrid Snakes) are Gray Bronzeback (about 40%), Triangle Keelback (about 30%) and Paradise Flying Snake (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Grabowsky's Reed Snake is recorded against all the reptiles logged in Danum Valley Conservation Area (9 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.
