Halcyon cyanoventris
Silhouette: Andy Wilson · PhyloPic
In 3 days ~60% in a week ~80%
The Javan kingfisher (Halcyon cyanoventris), sometimes called the blue-bellied kingfisher or Java kingfisher, is a medium-sized kingfisher (subfamily Halcyoninae) endemic to the Indonesian islands of Java and Bali. The brightly-colored Javan kingfisher has the large head and bill typical of kingfishers, although the species is less suited for aquatic hunting than many of its relatives and catches much of its prey on land or near the water's edge. The highly territorial bird lays its round white eggs in burrows excavated from earthen walls and riverbanks.
The Javan kingfisher was first described in 1818 by the French ornithologist Louis Pierre Vieillot, who gave it the scientific name Alcedo cyanoventris. In 1821, William Swainson created the genus Halcyon for some of kingfishers — primarily those with stronger, thicker, more rounded beaks. The bird is today listed under the genus Halcyon, referring to the "Halcyon" bird of Greek legend, which contains 11 species of large, heavy-billed kingfishers. Halcyon kingfishers generally prefer woodlands and primarily consume small terrestrial animals rather than fish. H. cyanoventris forms a superspecies with the white-throated... Wikipedia →
Recording0:15
Indonesia · 2025
© M Nur Yahya · iNaturalist · CC BY-NC 4.0
Recording0:19
Indonesia · 2019
© Naufal Urfi Dhiya'ulhaq · iNaturalist · CC BY-NC 4.0
Recording0:21
Indonesia · 2022
© bimadiwanata0108 · 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 | Yogyakarta | 🇮🇩 Indonesia | |
| 2 | Jakarta | 🇮🇩 Indonesia | |
| 3 | Bandung | 🇮🇩 Indonesia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Bali Bird Park | 🇮🇩 Indonesia |
Possible
About 20% of wildlife watchers report a Javan Kingfisher sighting in Jakarta on a given day, based on 36 verified sightings from GBIF citizen-science data. It is the 32nd most-seen of the 138 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 80%, if each day is a fresh chance.
September
In that month about 40% of wildlife watchers report a Javan Kingfisher in Jakarta on a given day, against under 5% in October, the lowest month. That is one of Jakarta's driest months, with about 85 mm of rain against 370 mm in February.
Between 1 and 4 am
Across all the parks we cover, that three-hour window holds the most Javan Kingfisher sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
2nd of 3
Of the 3 cities where we can rate Javan Kingfisher sightings, Jakarta ranks 2nd at about 20%. The best odds are in Yogyakarta (Indonesia, about 30%).
GBIF citizen-science records
It is estimated from how often the Javan Kingfisher is recorded against all the birds logged in Jakarta (36 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.
