Cave Swiftlet

Cave Swiftlet

Collocalia linchi

Silhouette: Aviceda (vectorized by T. Michael Keesey) · PhyloPic

LCLeast ConcernNTVUENCR
Daily sighting probability ~80% · Very likely
at Tasikmalaya

In 3 days >90%

6 Verified sightings at Tasikmalaya
1,058 In 1 park From 2019 to 2026
🌅 Crepuscular When it's spotted

About the Cave Swiftlet

The cave swiftlet or linchi swiftlet (Collocalia linchi) is a species of swift in the family Apodidae. It is found on the Indonesia islands of Sumatra, Java and Bali. It is a woodland species and nests in caves. The Bornean swiftlet was considered a subspecies, but is now usually considered distinct.

The cave swiftlet was described by the naturalists Thomas Horsfield and Frederic Moore in 1854 under the present binomial name Collocalia linchi. The specific epithet linchi is the Javanese word for a swiftlet. There are four recognised subspecies:

This bird is shiny blackish-brown above with a greenish gloss, including its rump; sometimes looks black and hooded. Chest black; belly to flanks pale grey with fine black speckles at margins. Wing tips are rounded; underwing is black. Tail black, rounded with shallow notch but lacking the white specks found in the very similar glossy swiftlet... Wikipedia →

Sounds

Call1:08

Indonesia · 2001

© Jelle Scharringa · XC777099 · CC BY-NC-SA 4.0

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Bali Barat National Park 🇮🇩 Indonesia
~70%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Yogyakarta 🇮🇩 Indonesia
~90%
2 Jakarta 🇮🇩 Indonesia
~90%
3 Denpasar 🇮🇩 Indonesia
~80%
4 Tasikmalaya 🇮🇩 Indonesia
~80%
5 Malang 🇮🇩 Indonesia
~50%
6 Semarang 🇮🇩 Indonesia
~50%
7 Bandung 🇮🇩 Indonesia
~40%
8 Surabaya 🇮🇩 Indonesia
~30%

Before you go

What are the chances of seeing a Cave Swiftlet in Tasikmalaya?

Very likely

About 80% of wildlife watchers report a Cave Swiftlet sighting in Tasikmalaya on a given day, based on 6 verified sightings from GBIF citizen-science data. Over three days the chance rises to over 90%, if each day is a fresh chance.

What time of day is best to see a Cave Swiftlet?

Between 6 and 9 am

Across all the parks we cover, that three-hour window holds the most Cave Swiftlet sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.

Is Tasikmalaya the best place to see a Cave Swiftlet?

4th of 8

Of the 8 cities where we can rate Cave Swiftlet sightings, Tasikmalaya ranks 4th at about 80%. The best odds are in Yogyakarta (Indonesia, about 90%), Jakarta (Indonesia, about 90%) and Denpasar (Indonesia, about 80%).

Where does the Cave Swiftlet sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Cave Swiftlet is recorded against all the birds logged in Tasikmalaya (6 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.

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