Boana crepitans
Silhouette: Andy Wilson · PhyloPic
In 3 days ~70% in a week ~90%
The emerald-eyed tree frog (Boana crepitans) is a species of frog in the family Hylidae. It is largely restricted to the Atlantic Forest region of Brazil although it is found in the Aquicuana Reserve in Bolivia. Some populations previously regarded as Boana crepitans have been separated into the species Boana xerophylla and Boana platanera.
The emerald-eyed tree frog varies in coloration, being either green, tan, or reddish-brown, and has long, slender arms and legs. The common name of these frogs stems from their metallic green iris. Males are smaller than females and have a dagger-like spine at the base of their thumb.
Emerald-eyed tree frogs are nocturnal and feed during the night, mostly feeding at the edges of ponds and rivers along with in shrubs and trees. Their diet consists of small insects such as crickets and flies. These frogs are arboreal, and they use the shade from leaves during the day to protect themselves from the sun, alongside using leaves as camouflage to protect themselves from predators. Like all frogs, Emerald-eyed treefrogs have a distinctive call that they use to communicate with other frogs and to find mates. The call of the... Wikipedia →
Recording
Suriname
© M.S. Hoogmoed · Xeno · CC BY 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chapada Diamantina National Park | 🇧🇷 Brazil |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report an Emerald-eyed Tree Frog sighting in Chapada Diamantina National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 2nd most-seen of the 5 amphibians we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
May
In that month about 50% of wildlife watchers report an Emerald-eyed Tree Frog in Chapada Diamantina National Park on a given day, against under 5% in February, April, July and September–October, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Emerald-eyed Tree Frog sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Only Chapada Diamantina National Park, in our data
Chapada Diamantina National Park is the only park on Wallace's Line with enough records to rate Emerald-eyed Tree Frog sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Emerald-eyed Tree Frog is recorded against all the amphibians logged in Chapada Diamantina National Park (11 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.
