Pseudopaludicola falcipes
Silhouette: PhyloPic
In 3 days ~10% in a week ~20%
Pseudopaludicola falcipes (Hensel's swamp frog) is a species of frog in the family Leptodactylidae. It is found in the Pampas of northeastern Argentina, Uruguay, and southern Brazil. Males measure 13.5–16.0 mm (0.53–0.63 in) and females 14.7–18.1 mm (0.58–0.71 in) in snout–vent length. It shows extensive variation in patterns of dorsal coloration and in morphology.
Pseudopaludicola falcipes shows a high level of genetic diversity but, contrary to what might expected for a small frog, no significant differentiation across its distribution range. This situation is probably possible because of the homogeneity of its habitat, the Pampean grasslands, large population sizes, and passive mechanisms of dispersal (hydrochory). Molecular data nevertheless suggest that Pseudopaludicola falcipes is divided into two populations, the larger one in Argentina and Uruguay, and the smaller one in Brazil. These populations are estimated to have separated some 1 million years ago, and become into contact again some 260 thousand years ago, permitting gene flow and leading to genetic admixture.
Pseudopaludicola falcipes is a common and... Wikipedia →
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Argentina · 2025
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Brazil · 2016
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Argentina · 2024
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| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Buenos Aires | 🇦🇷 Argentina |
Rare
Under 5% of wildlife watchers report a Hensel's Swamp Frog sighting in Buenos Aires on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 11th most-seen of the 13 amphibians we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Hensel's Swamp Frog in Buenos Aires on a given day, so our monthly data shows no clear season.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Hensel's Swamp Frog sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Buenos Aires, in our data
Buenos Aires is the only city on Wallace's Line with enough records to rate Hensel's Swamp Frog sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Leptodactylidae
The closest relatives of the Hensel's Swamp Frog that you can see in Buenos Aires (family Leptodactylidae, Southern Frogs) are Wrestler Frog (about 10%) and Oven Frog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hensel's Swamp Frog is recorded against all the amphibians logged in Buenos Aires (6 verified sightings), 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.
