Dendropsophus bifurcus
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~40% in a week ~70%
Dendropsophus bifurcus, commonly known as the Upper Amazon treefrog, is a species of frog in the family Hylidae. It is found in the upper Amazon Basin of Bolivia, Brazil, Colombia, Ecuador, and Peru. Dendropsophus bifurcus is an abundant and widespread species that inhabits bushes in open forest and clearings. It breeds in permanent and temporary shallow ponds. Eggs are laid out of the water on leaves whereas the tadpoles develop in the water. Wikipedia →
Recording0:52
Ecuador · 1983
© M.S. Hoogmoed · XC882735 · CC BY 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yasuní National Park | 🇪🇨 Ecuador |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report an Upper Amazon Tree Frog sighting in Yasuní National Park on a given day, based on 22 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 18th most-seen of the 49 amphibians we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
September
In that month about 40% of wildlife watchers report an Upper Amazon Tree Frog in Yasuní National Park on a given day, against under 5% in January, March–April, July–August and October, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Upper Amazon Tree Frog 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.
Only Yasuní National Park, in our data
Yasuní National Park is the only park on Wallace's Line with enough records to rate Upper Amazon Tree Frog sightings: about 20% of wildlife watchers there report one on a given day.
Same genus: Dendropsophus
The closest relatives of the Upper Amazon Tree Frog that you can see in Yasuní National Park (genus Dendropsophus, Yellow Tree Frogs) are Marbled Tree Frog (about 10%), Sarayacu Tree Frog (about 10%) and Variable Clown Tree Frog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Upper Amazon Tree Frog is recorded against all the amphibians logged in Yasuní National Park (22 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.
