Chalcorana chalconota
Silhouette: Michael Scroggie, from original photograph by John Bettaso, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~80% 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 Yogyakarta on a given day, based on 44 verified sightings from GBIF citizen-science data. It is the 3rd most-seen of the 5 amphibians we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
April–May, August and October
In those months about 60% of wildlife watchers report a Schlegel's Frog in Yogyakarta on a given day, against under 5% in January, 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.
3rd of 6
Of the 6 cities where we can rate Schlegel's Frog sightings, Yogyakarta ranks 3rd at about 50%. The best odds are in Malang (Indonesia, about 60%) and Jakarta (Indonesia, about 50%).
Same order: Anura
The closest relatives of the Schlegel's Frog that you can see in Yogyakarta (order Anura, Frogs and Toads) are Common Tree Frog (about 80%), Common Indian Toad (about 70%) and Smooth-Fingered Narrow-mouthed Frog (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 Yogyakarta (44 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.
