Oreobates amarakaeri
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~20% in a week ~40%
Oreobates amarakaeri, also known as Amarakaeri's big-headed frog, is a species of frog in the family Strabomantidae, which is endemic to a small region of south-eastern Peru, in the Manú District, and parts of the Puno Region. The frog was first discovered near the Rio Nusinuscato and Rio Mabe rivers in the Andean foothills of the Amarakaeri Communal Reserve, which are tributaries of the Rio Araza. Since then the species has also been found at the Manú Learning Centre and near Bahuaja Sonene National Park, but weren't fully confirmed to be there until 2019 when four specimens were collected at those localities. At the Manú Learning Centre the frog is known to occur mainly in low disturbance and primary forest habitat, but can also be found near streams in more disturbed areas.
The Amarakaeri's big-headed frog has a brown dorsum with low warts, a black W-shaped mark which may be absent, and some black spotting. On the face there are lightly darkened lipbars, and on the legs there are transverse darkened bands. The groin, belly, and ventral surfaces of the limbs are orange. Their throats are grey or white with white or orange spots. Two individuals in the Amarakaeri... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manu National Park | 🇵🇪 Peru |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Amarakaeri’s Big-headed Frog sighting in Manu National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 66th 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.
December
In that month about 20% of wildlife watchers report an Amarakaeri’s Big-headed Frog in Manu National Park on a given day, against under 5% in January–February, April–May and July–October, the lowest months. That is one of Manu National Park's wettest months, with about 250 mm of rain against 60 mm in August.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Amarakaeri’s Big-headed Frog sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
Only Manu National Park, in our data
Manu National Park is the only park on Wallace's Line with enough records to rate Amarakaeri’s Big-headed Frog sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Amarakaeri’s Big-headed Frog is recorded against all the amphibians logged in Manu National Park (7 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.
