Siphlophis compressus
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~30% in a week ~50%
Siphlophis compressus the tropical flat snake, is a snake found in tropical Central and South America and Trinidad and Tobago. It feeds on small lizards, other snakes, small mammals and probably on frogs and nestling birds, as well as the eggs of nesting birds and lizards.
Boos, Hans E.A. (2001). The snakes of Trinidad and Tobago. Texas A&M University Press, College Station, TX. ISBN 1-58544-116-3. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Piedras Blancas National Park | 🇨🇷 Costa Rica | |
| 2 | Yasuní National Park | 🇪🇨 Ecuador | |
| 3 | Manu National Park | 🇵🇪 Peru | |
| 4 | Corcovado National Park | 🇨🇷 Costa Rica |
With luck
About 10% of wildlife watchers report a Tropical Flat Snake sighting in Corcovado National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 34th most-seen of the 41 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.
December
In that month about 20% of wildlife watchers report a Tropical Flat Snake in Corcovado National Park on a given day, against under 5% in April–May and July–November, the lowest months. That is one of Corcovado National Park's driest months, with about 220 mm of rain against 770 mm in October.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Tropical Flat Snake sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
4th of 4
Of the 4 parks where we can rate Tropical Flat Snake sightings, Corcovado National Park ranks 4th at about 10%. The best odds are in Piedras Blancas National Park (Costa Rica, about 20%), Yasuní National Park (Ecuador, about 10%) and Manu National Park (Peru, about 10%).
Same family: Colubridae
The closest relatives of the Tropical Flat Snake that you can see in Corcovado National Park (family Colubridae, Colubrid Snakes) are Ornate Cat-eyed Snake (about 30%), Puffing Snake (about 20%) and Chicken Snake (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Tropical Flat Snake is recorded against all the reptiles logged in Corcovado National Park (8 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.
