Collocalia sumbawae
Silhouette: Aviceda (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~50% in a week ~80%
The Tenggara swiftlet (Collocalia sumbawae) is a small bird in the swift family Apodidae. It is endemic to the western Lesser Sunda Islands of Indonesia. Its natural habitat is subtropical or tropical moist lowland forests. It was previously considered a subspecies of the glossy swiftlet.
The Tenggara swiftlet was described by the German ornithologist Erwin Stresemann in 1925 under the present binomial name Collocalia sumbawae. The type locality is the island of Sumbawa in the Lesser Sunda Islands. The Tenggara swiftlet was formerly treated as a subspecies of the glossy swiftlet but was promoted to species status based on the results of a detailed analysis of the swiftlets in the genus Collocalia published in 2017.
The back and upper surface of the wings are dark blue with a moderate gloss. The rump is generally dark but sometimes includes feathers with thin white edging. The throat and upper breast are grey with fine white scalloping merging... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Komodo National Park | 🇮🇩 Indonesia |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Tenggara Swiftlet sighting in Komodo National Park on a given day, based on 57 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 29th most-seen of the 76 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
January
In that month about 40% of wildlife watchers report a Tenggara Swiftlet in Komodo National Park on a given day, against about 10% in November, the lowest month. That is one of Komodo National Park's wettest months, with about 200 mm of rain against 10 mm in August.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Tenggara Swiftlet sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Komodo National Park, in our data
Komodo National Park is the only park on Wallace's Line with enough records to rate Tenggara Swiftlet sightings: about 20% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Tenggara Swiftlet is recorded against all the birds logged in Komodo National Park (57 verified sightings from 2019 to 2026), 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.
