Imantodes inornatus
Silhouette: PhyloPic
In 3 days ~30% in a week ~50%
Imantodes inornatus, the western tree snake, is a species of colubrid snake native to Central America. It can be found from Guatemala to Ecuador. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 2 | Tenorio Volcano National Park | 🇨🇷 Costa Rica | |
| 3 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 4 | Gandoca-Manzanillo Wildlife Refuge | 🇨🇷 Costa Rica | |
| 5 | Manuel Antonio National Park | 🇨🇷 Costa Rica | |
| 6 | Soberanía National Park | 🇵🇦 Panama |
With luck
About 10% of wildlife watchers report a Western Tree Snake sighting in Gandoca-Manzanillo Wildlife Refuge on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 31st most-seen of the 33 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.
June
In that month about 30% of wildlife watchers report a Western Tree Snake in Gandoca-Manzanillo Wildlife Refuge on a given day, against under 5% in February–April, July, September and November–December, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Western Tree Snake sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
4th of 6
Of the 6 parks where we can rate Western Tree Snake sightings, Gandoca-Manzanillo Wildlife Refuge ranks 4th at about 10%. The best odds are in Braulio Carrillo National Park (Costa Rica, about 20%), Tenorio Volcano National Park (Costa Rica, about 20%) and Arenal Volcano National Park (Costa Rica, about 10%).
GBIF citizen-science records
It is estimated from how often the Western Tree Snake is recorded against all the reptiles logged in Gandoca-Manzanillo Wildlife Refuge (5 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.
