Freiberg's Foam-Frog

Freiberg's Foam-Frog

Engystomops freibergi

Silhouette: Luke Larter, based on photo by Amanda Lea · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~20% · Possible
at Manu National Park
55 Verified sightings at Manu National Park From 2019 to 2026
80 Verified sightings across all 3 parks From 2019 to 2026
August Best month highest sighting rate
🌙 Nocturnal When it's spotted during nighttime hours (6pm–6am)

About the Freiberg's Foam-Frog

Freiberg's forest toadlet (Engystomops freibergi) is a frog native to the Amazonian Brazil, southeastern Peru, and Amazonian Bolivia. For a while, it was considered to be a synonym of Engystomops petersi, its sibling species, but its species status was resurrected in a study published in 1998. Nevertheless, these two species have also been mixed in later studies, and there are records from the Guianas that have not yet been allocated to either species. Divergence of these two species seems to have been driven by behavioural isolation related to male call characteristics more than geographic isolation.

Engystomops freibergi are relatively small frogs. Males measure 24–36 mm (0.94–1.42 in) in snout–vent length and females 25–39 mm (0.98–1.54 in). Dorsal colouration is variable. Skin on dorsum is warty, bearing small tubercles with scattered larger tubercles.

Engystomops freibergi is a locally common species found in lowland Amazon rainforest. These frogs are nocturnal and usually found in the leaf litter in primary forest. They feed primarily on termites. Scientists have reported the frogs in protected places Tambopata National Reserve, Manu National Park... Wikipedia →

Closest Relatives at Manu National Park

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Manu National Park 🇵🇪 Peru
~20%
2 Tambopata National Reserve 🇵🇪 Peru
~20%
3 Madidi National Park 🇧🇴 Bolivia
Insufficient data

Quick answers

What are the chances of seeing a Freiberg's Foam-Frog in Manu National Park?

About 20% of wildlife watchers report a Freiberg's Foam-Frog sighting in Manu National Park, based on 55 verified sightings from GBIF citizen-science data.

When is the best time to see Freiberg's Foam-Frog in Manu National Park?

August has the highest sighting rate for Freiberg's Foam-Frog in Manu National Park in our monthly data.

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