Dendropsophus marmoratus
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~20% in a week ~40%
Dendropsophus marmoratus (the marmorea frog or South American bird poop frog) is a species of frog in the family Hylidae. It is found in the Amazon rainforest and montane forests in the eastern piedmont in Bolivia, Brazil, Colombia, Ecuador (Morona Santiago, Napo, Orellana, Pastaza, and Sucumbíos provinces), French Guiana, Guyana, Peru, Suriname, and Venezuela.
Its natural habitats are subtropical or tropical moist lowland forests, intermittent freshwater marshes, and heavily degraded former forest. The species is threatened by habitat loss. Dendropsophus marmoratus is a medium-sized frog. The snout–vent length in males averages 35.8 mm with a range of 29.8–41.5 mm, and in females the average is 47.7 mm with a range of 46.5–49.7 mm.
According to Duellman, the snout is round in dorsal and profile view. Eardrums are present. The outer finger of the hand has a membrane to the base of the disc; the other manual fingers have membranes along about 2/3 of their length. The toes also have membranes at the base of the discs. Males in reproduction lack cornified nuptial excrescences. Scalloped skin folds are present on the outer edges of the feet, forearms and hands. The... Wikipedia →
Recording1:19
Suriname
© M.S. Hoogmoed · XC882750 · CC BY 4.0
Recording0:05
Ecuador · 2025
© Alex Bentley · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yasuní National Park | 🇪🇨 Ecuador | |
| 2 | Manu National Park | 🇵🇪 Peru |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Toledo Zoo | 🇺🇸 United States | |
| 2 | Florida Aquarium | 🇺🇸 United States | |
| 3 | Snake Discovery: A Reptile Experience | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Marbled Tree Frog sighting in Manu National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 61st most-seen of the 67 amphibians we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
January
In that month about 20% of wildlife watchers report a Marbled Tree Frog in Manu National Park on a given day, against under 5% in February, April, June–October and December, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Marbled Tree Frog 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.
Among the best
Of the 2 parks where we can rate Marbled Tree Frog sightings, Manu National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Yasuní National Park (Ecuador, about 10%).
Same genus: Dendropsophus
The closest relatives of the Marbled Tree Frog that you can see in Manu National Park (genus Dendropsophus, Yellow Tree Frogs) are Inotawa Tree Frog (about 20%), Red-skirted Tree Frog (about 20%) and Mottled Clown Treefrog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Marbled Tree Frog is recorded against all the amphibians logged in Manu National Park (6 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.
