Ptychadena anchietae
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~60% in a week ~90%
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 |
Possible
About 20% of wildlife watchers report an Anchieta's Ridged Frog sighting in Liwonde National Park 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 60%, and over a week to about 90%, if each day is a fresh chance.
April
In that month about 60% of wildlife watchers report an Anchieta's Ridged Frog in Liwonde National Park on a given day, against under 5% in January, March and May–November, the lowest months. That is one of Liwonde National Park's driest months, with about 40 mm of rain against 300 mm in January.
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.
2nd of 5
Of the 5 parks where we can rate Anchieta's Ridged Frog sightings, Liwonde National Park ranks 2nd at about 20%. The best odds are in Gonarezhou National Park (Zimbabwe, about 30%).
GBIF citizen-science records
It is estimated from how often the Anchieta's Ridged Frog is recorded against all the amphibians logged in Liwonde 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.
