What are the chances of seeing a Harlequin Treefrog in Corcovado National Park?
With luck
About 10% of wildlife watchers report a Harlequin Treefrog sighting in Corcovado National Park on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 19th most-seen of the 27 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
When is the best time to see a Harlequin Treefrog in Corcovado National Park?
May and September–October
In those months about 30% of wildlife watchers report a Harlequin Treefrog in Corcovado National Park on a given day, against under 5% in January–February, April and November, the lowest months. Those are among Corcovado National Park's wettest months, with about 590 mm of rain a month against 65 mm in February.
What time of day is best to see a Harlequin Treefrog?
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Harlequin Treefrog 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.
Is Corcovado National Park the best place to see a Harlequin Treefrog?
12th of 14
Of the 14 parks where we can rate Harlequin Treefrog sightings, Corcovado National Park ranks 12th at about 10%. The best odds are in Arenal Volcano National Park (Costa Rica, about 40%), Tenorio Volcano National Park (Costa Rica, about 40%) and Carara National Park (Costa Rica, about 30%).
Which relatives of the Harlequin Treefrog live in Corcovado National Park?
Same family: Hylidae
The closest relatives of the Harlequin Treefrog that you can see in Corcovado National Park (family Hylidae, Hylid Tree Frogs) are Rosenberg's Gladiator Frog (about 30%), Masked Tree Frog (about 30%) and Drab Tree Frog (about 20%), with each one's daily chance of a sighting.
Where does the Harlequin Treefrog sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Harlequin Treefrog is recorded against all the amphibians logged in Corcovado National Park (15 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.