What are the chances of seeing a White-nest Swiftlet in Gunung Leuser National Park?
With luck
About 10% of wildlife watchers report a White-nest Swiftlet sighting in Gunung Leuser National Park on a given day, based on 25 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 72nd most-seen of the 166 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
When is the best time to see a White-nest Swiftlet in Gunung Leuser National Park?
July and December–January
In those months about 20% of wildlife watchers report a White-nest Swiftlet in Gunung Leuser National Park on a given day, against under 5% in February–May, August and October, the lowest months.
What time of day is best to see a White-nest Swiftlet?
Between 1 and 4 am
Across all the parks we cover, that three-hour window holds the most White-nest Swiftlet 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.
Is Gunung Leuser National Park the best place to see a White-nest Swiftlet?
13th of 19
Of the 19 parks where we can rate White-nest Swiftlet sightings, Gunung Leuser National Park ranks 13th at about 10%. The best odds are in Cat Tien National Park (Vietnam, about 60%), Khao Luang National Park (Thailand, about 50%) and Khao Sok National Park (Thailand, about 40%). All parks ranked.
Where does the White-nest Swiftlet sighting chance come from?
GBIF citizen-science records
It is estimated from how often the White-nest Swiftlet is recorded against all the birds logged in Gunung Leuser National Park (25 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.