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 50% of wildlife watchers report a Schlegel's Frog sighting in Jakarta on a given day, based on 190 verified sightings from GBIF citizen-science data. It is the 3rd most-seen of the 18 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.
November
In that month about 70% of wildlife watchers report a Schlegel's Frog in Jakarta on a given day, against about 30% in April, the lowest month.
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.
2nd of 6
Of the 6 cities where we can rate Schlegel's Frog sightings, Jakarta ranks 2nd at about 50%. The best odds are in Malang (Indonesia, about 60%).
GBIF citizen-science records
It is estimated from how often the Schlegel's Frog is recorded against all the amphibians logged in Jakarta (190 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.
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