Chalcorana chalconota
Silhouette: Michael Scroggie, from original photograph by John Bettaso, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~90% in a week >90%
Chalcorana chalconota is a species of "true frog", family Ranidae. It is endemic to Indonesia and occurs in southern Sumatra, Java, Bali, and a few smaller islands. Populations previously assigned to this species now belong to a number of other Chalcorana species, leading to the current delineation of Chalcorana chalconota with a much narrower range. This species is also known as the Schlegel's frog, brown stream frog, copper-cheeked frog, or, among with many other species, white-lipped frog.
Chalcorana chalconota are relatively large frogs: adult males measure 34–50 mm (1.3–2.0 in) and females 49–73 mm (1.9–2.9 in) in snout–vent length. The legs are relatively short. The snout is slightly projecting. The tympanum is visible, slightly depressed. The finger tips are much enlarged. Coloration is green; the back may have black spots. Hind limbs may have crossbars. Dorsal skin is granular in females and has many fine spinules in males. Males also have conspicuously protruding humeral glands.
Chalcorana chalconota can be found along small lowland forest streams, but also away from streams in forest and in highland areas at elevations up to... Wikipedia →
Recording0:19
Indonesia · 2022
© Julia · iNaturalist · CC BY-NC 4.0
Recording0:54
Indonesia · 2025
© Colin Trainor · iNaturalist · CC BY-NC 4.0
Recording1:16
2023
© Averroes Oktaliza · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Malang | 🇮🇩 Indonesia | |
| 2 | Jakarta | 🇮🇩 Indonesia | |
| 3 | Yogyakarta | 🇮🇩 Indonesia | |
| 4 | Tasikmalaya | 🇮🇩 Indonesia | |
| 5 | Bandung | 🇮🇩 Indonesia | |
| 6 | Semarang | 🇮🇩 Indonesia |
Likely
About 60% of wildlife watchers report a Schlegel's Frog sighting in Malang on a given day, based on 30 verified sightings from GBIF citizen-science data. It is the 2nd most-seen of the 5 amphibians we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
September and November
In those months about 80% of wildlife watchers report a Schlegel's Frog in Malang on a given day, against about 20% in April to June, the lowest months. Those are among Malang's driest months, with about 80 mm of rain a month against 320 mm in February.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Schlegel's Frog sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Yes
Of the 6 cities where we can rate Schlegel's Frog sightings, Malang has the highest daily chance: about 60%. Next come Jakarta (Indonesia, about 50%) and Yogyakarta (Indonesia, about 50%).
Same order: Anura
The closest relatives of the Schlegel's Frog that you can see in Malang (order Anura, Frogs and Toads) are Common Indian Toad (about 80%), River Toad (about 50%) and Hasselt's Toad (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Schlegel's Frog is recorded against all the amphibians logged in Malang (30 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.
