Coelognathus radiatus
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~30% in a week ~50%
Coelognathus radiatus, commonly known as the radiated ratsnake, copperhead rat snake, or copper-headed trinket snake, is a nonvenomous species of colubrid snake. These snakes are usually defensive in nature which makes it hard to catch or control them.
German: Strahlennatter English: Copperhead racer Copperhead rat snake Radiated rat snake Copper-headed trinket snake Thai: งูทางมะพร้าว, ngu taang mapao Myanmar: ငန်းစောင်း Laos:ງູສາ Malay: Ular Rusuk Kerbau Bengali (Bangladesh): দুধরাজ (Dudhraj), আরবালি সাপ (Arbali sap)
Vietnamese: rắn sọc dưa, rắn hổ ngựa Indonesia (Sumatra, Bangka, Borneo/Kalimantan, Java), Bali Malaysia and Brunei (Malaya and East Malaysia); Borneo, Singapore Island, Burma (Myanmar), Thailand (including Phuket), Koh Phangan
Laos, Cambodia, Vietnam, Japan (Ryukyu Islands), India (Assam, Arunachal Pradesh (Miao - Changlang district, Chessa, Chimpu, Itanagar - Papum Pare district) [A. Captain, pers. comm.]), Bangladesh, Nepal, South China (Fujian, Yunnan, Guangxi, Guangdong, Hong Kong),
Nepal Type locality: Java Barbour, Thomas (1912). Some Chinese Vertebrates: Amphibia and Reptilia... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Sok National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chattogram | 🇧🇩 Bangladesh | |
| 2 | Ho Chi Minh City | 🇻🇳 Vietnam | |
| 3 | Jakarta | 🇮🇩 Indonesia | |
| 4 | Tuen Mun | 🇨🇳 China | |
| 5 | Bangkok | 🇹🇭 Thailand | |
| 6 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 7 | Guangzhou | 🇨🇳 China | |
| 8 | Hong Kong | 🇨🇳 China |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Yangon Zoological Gardens | 🇲🇲 Myanmar (Burma) | |
| 2 | Chiang Mai Zoo | 🇹🇭 Thailand | |
| 3 | Safari Madrid | 🇪🇸 Spain | |
| 4 | Yaroslavl Zoo | 🇷🇺 Russia | |
| 5 | Warsaw Zoo | 🇵🇱 Poland | |
| 6 | Saigon Zoo and Botanical Gardens | 🇻🇳 Vietnam | |
| 7 | Zoo d'Amnéville | 🇫🇷 France | |
| 8 | Crocodile Farm | 🇹🇭 Thailand | |
| 9 | Central Park Zoo | 🇺🇸 United States | |
| 10 | Macau Zoo | 🇲🇴 Macao SAR China | |
| 11 | Siam Serpentarium | 🇹🇭 Thailand | |
| 12 | Snake Farm of Queen Saovabha Memorial Institute | 🇹🇭 Thailand | |
| 13 | Zoo Samara | 🇷🇺 Russia | |
| 14 | Aquarium d'Amnéville | 🇫🇷 France | |
| 15 | herpetarium warszawskiego ZOO | 🇵🇱 Poland | |
| 16 | Reptiland | 🇫🇷 France | |
| 17 | akwarium warszawskiego ZOO | 🇵🇱 Poland |
With luck
About 10% of wildlife watchers report a Copperhead Rat Snake sighting in Jakarta on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 40th most-seen of the 47 reptiles we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Copperhead Rat Snake in Jakarta on a given day, against under 5% in June–July and December–April, the lowest months. That is one of Jakarta's driest months, with about 55 mm of rain against 370 mm in February.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Copperhead Rat Snake 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 8
Of the 8 cities where we can rate Copperhead Rat Snake sightings, Jakarta ranks 3rd at about 10%. The best odds are in Chattogram (Bangladesh, about 40%) and Ho Chi Minh City (Vietnam, about 10%).
GBIF citizen-science records
It is estimated from how often the Copperhead Rat Snake is recorded against all the reptiles logged in Jakarta (8 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.
