Ptychadena anchietae
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~20% in a week ~40%
Anchieta's ridged frog or plain grass frog (Ptychadena anchietae) is a species of frog in the family Ptychadenidae. It is found in Angola, Botswana, Republic of the Congo, Democratic Republic of the Congo, Djibouti, Eritrea, Eswatini, Ethiopia, Kenya, Malawi, Mozambique, Namibia, Somalia, South Africa, Sudan, Tanzania, Uganda, Zambia, Zimbabwe, possibly Burundi, and possibly Rwanda. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, dry savanna, moist savanna, subtropical or tropical dry shrubland, subtropical or tropical moist shrubland, subtropical or tropical dry lowland grassland, rivers, intermittent rivers, freshwater lakes, freshwater marshes, intermittent freshwater marshes, hot deserts, arable land, rural gardens, urban areas, and ponds. Wikipedia →
Recording0:24
South Africa · 2021
© Alex Rebelo · iNaturalist · CC BY-NC 4.0
Recording0:09
Kenya · 2025
© Liam Ragan · iNaturalist · CC BY-NC 4.0
Recording0:13
South Africa · 2026
© Fortunate Mafeta Phaka · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Gonarezhou National Park | 🇿🇼 Zimbabwe | |
| 2 | Liwonde National Park | 🇲🇼 Malawi | |
| 3 | Kruger National Park | 🇿🇦 South Africa | |
| 4 | iSimangaliso Wetland Park | 🇿🇦 South Africa | |
| 5 | Masai Mara National Reserve | 🇰🇪 Kenya |
With luck
About 10% of wildlife watchers report an Anchieta's Ridged Frog sighting in Masai Mara National Reserve on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
March
In that month about 20% of wildlife watchers report an Anchieta's Ridged Frog in Masai Mara National Reserve on a given day, against under 5% in April–May, October and December–February, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Anchieta's Ridged 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.
5th of 5
Of the 5 parks where we can rate Anchieta's Ridged Frog sightings, Masai Mara National Reserve ranks 5th at about 10%. The best odds are in Gonarezhou National Park (Zimbabwe, about 30%), Liwonde National Park (Malawi, about 20%) and Kruger National Park (South Africa, about 20%).
Same order: Anura
The closest relatives of the Anchieta's Ridged Frog that you can see in Masai Mara National Reserve (order Anura, Frogs and Toads) are Common Reed Frog (about 10%), African Common Toad (about 10%) and Crowned bullfrog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Anchieta's Ridged Frog is recorded against all the amphibians logged in Masai Mara National Reserve (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.
