Dendrelaphis formosus
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~10% in a week ~30%
Dendrelaphis formosus, commonly known as either the elegant bronzeback or beautiful bronzeback tree snake, is a snake species in the family Colubridae from Southeast Asia. Dendrelaphis formosus belongs to the genus Dendrelaphis, which contains 48 other described species.
Dendrelaphis is one of five genera belonging to the vine snake subfamily Ahaetuliinae, of which Dendrelaphis is most closely related to Chrysopelea, as shown in the cladogram below: The beautiful bronzeback tree snake is native to southern Thailand, Peninsular Malaysia to the islands of Sumatra, Borneo and Java. It inhabits lowland forests up to elevations of 600 m (2,000 ft). The snake is diurnal and fully arboreal, and has oviparous reproduction. It mainly feeds on lizards, but occasionally also frogs. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 2 | Khao Sok National Park | 🇹🇭 Thailand | |
| 3 | Bako National Park | 🇲🇾 Malaysia | |
| 4 | Kinabalu Park | 🇲🇾 Malaysia | |
| 5 | Danum Valley Conservation Area | 🇲🇾 Malaysia |
Rare
Under 5% of wildlife watchers report an Elegant Bronzeback sighting in Singapore on a given day, based on 33 verified sightings from GBIF citizen-science data. It is the 43rd most-seen of the 64 reptiles we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
February–March, June, September and December
In those months about 10% of wildlife watchers report an Elegant Bronzeback in Singapore on a given day, against under 5% in January, April–May, July–August and October–November, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Elegant Bronzeback sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 3
Of the 3 cities where we can rate Elegant Bronzeback sightings, Singapore ranks 3rd at under 5%. The best odds are in Jakarta (Indonesia, about 20%) and Bandung (Indonesia, about 10%).
Same genus: Dendrelaphis
The closest relatives of the Elegant Bronzeback that you can see in Singapore (genus Dendrelaphis, Bronzebacks) are Common Bronze-back (about 20%), Kopstein's Bronzeback Snake (about 10%) and Gray Bronzeback (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Elegant Bronzeback is recorded against all the reptiles logged in Singapore (33 verified sightings), 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.
