Stachyris melanothorax
Silhouette: Jiekun He · PhyloPic
In 3 days ~20% in a week ~40%
The crescent-chested babbler (Cyanoderma melanothorax) is a babbler species in the family Timaliidae and is native to the Indonesian islands of Java and Bali. It inhabits subtropical or tropical moist lowland forest, montane forest and shrubland. It is listed as Least Concern on the IUCN Red List.
It is ochreous-brown, has rufous-coloured wings, paler underparts and a black crescent across its breast. It is 13 cm (5.1 in) long. Myiothera melanothorax was the scientific name proposed by Coenraad Jacob Temminck in 1823 who described a babbler from Java.
The generic name Cyanoderma was proposed by Tommaso Salvadori in 1874 for babblers with slender and pointed beaks. It was later placed in the genus Stachyris, but since 2020 is recognised as a Cyanoderma species. BirdLife International (2019). "Crescent-chested Babbler Cyanoderma melanothorax". Wikipedia →
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Indonesia · 2023
© Ganjar Cahyadi · iNaturalist · CC BY 4.0
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Indonesia · 2026
© Paleoraptor_ · iNaturalist · CC BY-NC 4.0
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Indonesia · 2026
© Sean Koresy · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bali Barat National Park | 🇮🇩 Indonesia |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bandung | 🇮🇩 Indonesia |
With luck
About 10% of wildlife watchers report a Crescent-chested Babbler sighting in Bandung on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 26th most-seen of the 28 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
June
In that month about 20% of wildlife watchers report a Crescent-chested Babbler in Bandung on a given day, against under 5% in January, April, August and October–November, the lowest months. That is one of Bandung's driest months, with about 100 mm of rain against 370 mm in February. February–March, May and July have too few records to rate.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Crescent-chested Babbler sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Bandung, in our data
Bandung is the only city on Wallace's Line with enough records to rate Crescent-chested Babbler sightings: about 10% of wildlife watchers there report one on a given day.
Same order: Passeriformes
The closest relatives of the Crescent-chested Babbler that you can see in Bandung (order Passeriformes, Perching Birds) are Eurasian Tree Sparrow (about 50%), Javan Myna (about 30%) and Pacific Swallow (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Crescent-chested Babbler is recorded against all the birds logged in Bandung (5 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.
