Cerrophidion sasai
Silhouette: Steven Traver · PhyloPic
In 3 days ~10% in a week ~30%
Cerrophidion sasai, the Costa Rica montane pitviper, is a venomous snake mostly found in the southeastern parts of Mexico to the west of Panama. In Costa Rica it is found in the Cordillera Central and Cordillera de Talamanca at altitudes from 1,460 to 2,875 m (4,790 to 9,430 ft)
It is a diurnal species of snake that usually feeds on small mammals, birds, lizards, snakes, amphibians, and arthropods. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chirripó National Park | 🇨🇷 Costa Rica | |
| 2 | La Amistad International Park (Panama) | 🇵🇦 Panama |
Rare
Under 5% of wildlife watchers report a Costa Rica Montane Pitviper sighting in La Amistad International Park (Panama) on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 58th most-seen of the 63 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.
May, July–August and November
In those months about 10% of wildlife watchers report a Costa Rica Montane Pitviper in La Amistad International Park (Panama) on a given day, against under 5% in June, September–October and December–April, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Costa Rica Montane Pitviper sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Costa Rica Montane Pitviper sightings, La Amistad International Park (Panama) ranks 2nd at under 5%. The best odds are in Chirripó National Park (Costa Rica, about 20%).
Same family: Viperidae
The closest relatives of the Costa Rica Montane Pitviper that you can see in La Amistad International Park (Panama) (family Viperidae, Vipers) are Fer-de-lance (about 10%), Black-speckled Palm Pit Viper (about 10%) and Side-striped palm pit viper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Costa Rica Montane Pitviper is recorded against all the reptiles logged in La Amistad International Park (Panama) (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.
