Alcedo coerulescens
Silhouette: Steven Traver · PhyloPic
In 3 days ~70% in a week ~90%
The cerulean kingfisher (Alcedo coerulescens) is a kingfisher in the subfamily Alcedininae which is native to parts of Indonesia. With an overall metallic blue impression, it is very similar to the common kingfisher, but it is white underneath instead of orange. Males average bluer than females, which have a greenish cast.
It is sometimes called the small blue kingfisher but in Indonesia and parts of Asia that name refers to Alcedo atthis (common kingfisher). The first formal description of the cerulean kingfisher was by the French ornithologist Louis Pierre Vieillot in 1818. He coined the binomial name Alcedo coerulescens. The specific epithet coerulescens is from the Latin caerulescens meaning "bluish". The species is monotypic.
The cerulean kingfisher is a small kingfisher with a length of 13 cm (5.1 in). The upperparts are a range of shades of blue with white lores and a prominent white patch on each side of the neck. The underparts are white with an azure-blue breast-band. The bill is blackish and the legs are dark brown. The female has duller and slightly greenish plumage and a narrower breast band.
The cerulean kingfisher... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bali Barat National Park | 🇮🇩 Indonesia | |
| 2 | Way Kambas National Park | 🇮🇩 Indonesia |
Possible
About 30% of wildlife watchers report a Small Blue Kingfisher sighting in Jakarta on a given day, based on 322 verified sightings from GBIF citizen-science data. It is the 24th most-seen of the 138 birds we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
August and September
In those months about 50% of wildlife watchers report a Small Blue Kingfisher in Jakarta on a given day, against about 10% in March, the lowest month. Those are among Jakarta's driest months, with about 70 mm of rain a month against 370 mm in February.
Between 2 and 5 am
Across all the parks we cover, that three-hour window holds the most Small Blue Kingfisher sightings with a recorded time, and about half 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 Small Blue Kingfisher sightings, Jakarta ranks 2nd at about 30%. The best odds are in Denpasar (Indonesia, about 50%).
GBIF citizen-science records
It is estimated from how often the Small Blue Kingfisher is recorded against all the birds logged in Jakarta (322 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.
