Boana boans
Silhouette: Andy Wilson · PhyloPic
In 3 days ~20% in a week ~50%
The rusty tree frog (Boana boans), also known as the giant gladiator treefrog, is a species of frog in the family Hylidae found in South America and Panama. Its natural habitats are subtropical or tropical moist lowland forests, rivers, and intermittent freshwater marshes. In some areas, it is sympatric with H. rosenbergi.
It is called ukato in the Kwaza language of Rondônia, Brazil. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tambopata National Reserve | 🇵🇪 Peru | |
| 2 | Manu National Park | 🇵🇪 Peru | |
| 3 | Yasuní National Park | 🇪🇨 Ecuador | |
| 4 | Soberanía National Park | 🇵🇦 Panama |
With luck
About 10% of wildlife watchers report a Rusty Tree Frog sighting in Yasuní National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 43rd most-seen of the 49 amphibians we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
October and December
In those months about 20% of wildlife watchers report a Rusty Tree Frog in Yasuní National Park on a given day, against under 5% in February, April–June, August–September and November, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Rusty Tree Frog sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
3rd of 4
Of the 4 parks where we can rate Rusty Tree Frog sightings, Yasuní National Park ranks 3rd at about 10%. The best odds are in Tambopata National Reserve (Peru, about 20%) and Manu National Park (Peru, about 10%).
Same genus: Boana
The closest relatives of the Rusty Tree Frog that you can see in Yasuní National Park (genus Boana, Gladiator Tree Frogs) are Canelos Treefrog (about 20%), Rocket Tree Frog (about 20%) and Rough-skinned Green Tree Frog (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rusty Tree Frog is recorded against all the amphibians logged in Yasuní 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.
