Rhadinaea calligaster
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~20% in a week ~40%
Rhadinaea calligaster, the thick graceful brown snake, is a species of snake in the family Colubridae. It is found in Costa Rica and Panama. Species Rhadinaea calligaster at The Reptile Database Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Los Quetzales National Park | 🇨🇷 Costa Rica | |
| 2 | La Amistad International Park (Panama) | 🇵🇦 Panama |
No species of the same family or order lives in Los Quetzales National Park, so these are its closest relatives here: other reptiles.
With luck
About 10% of wildlife watchers report a Thick Graceful Brown Snake sighting in Los Quetzales National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 6 reptiles we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
October
In that month about 30% of wildlife watchers report a Thick Graceful Brown Snake in Los Quetzales National Park on a given day, against under 5% in April–May, August–September and November–February, the lowest months. That is one of Los Quetzales National Park's wettest months, with about 730 mm of rain against 70 mm in February.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Thick Graceful Brown Snake sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Thick Graceful Brown Snake sightings, Los Quetzales National Park has the highest daily chance: about 10%. Next come La Amistad International Park (Panama) (Panama, under 5%).
GBIF citizen-science records
It is estimated from how often the Thick Graceful Brown Snake is recorded against all the reptiles logged in Los Quetzales National Park (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.
