Ptychadena nilotica
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~20% in a week ~40%
Ptychadena nilotica is a species of frog in the family Ptychadenidae. It is found in the upper reaches of the Nile and its major tributaries in Egypt, Sudan, South Sudan, Ethiopia, Burundi, Rwanda, Uganda, Kenya, Tanzania, Democratic Republic of Congo, and possibly Djibouti, Eritrea, and Somalia. Its natural habitats are wetlands near rivers, large lakes, swamps, and freshwater marshes and springs., as well as dry savanna, subtropical or tropical dry shrubland, arable land, irrigation canals and ditches. Wikipedia →
Recording0:08
Tanzania · 2007
© probreviceps · iNaturalist · CC BY-NC 4.0
Recording0:49
Rwanda · 2026
© Eulade Mugiraneza · iNaturalist · CC BY-NC 4.0
Recording0:37
Rwanda · 2025
© Ruben Foquet · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | iSimangaliso Wetland Park | 🇿🇦 South Africa |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Nile Ridged Frog sighting in iSimangaliso Wetland Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 20th most-seen of the 22 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.
November to March
In those months about 10% of wildlife watchers report a Nile Ridged Frog in iSimangaliso Wetland Park on a given day, against under 5% in April to October, the lowest months. Those are among iSimangaliso Wetland Park's wettest months, with about 100 mm of rain a month against 30 mm in July.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Nile Ridged Frog sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.
Only iSimangaliso Wetland Park, in our data
iSimangaliso Wetland Park is the only park on Wallace's Line with enough records to rate Nile Ridged Frog sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Ptychadena
The closest relatives of the Nile Ridged Frog that you can see in iSimangaliso Wetland Park (genus Ptychadena, Ridged Frogs) are Anchieta's Ridged Frog (about 10%) and Sharp-nosed ridged frog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Nile Ridged Frog is recorded against all the amphibians logged in iSimangaliso Wetland Park (9 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.
