What are the chances of seeing a White-nest Swiftlet in Sepilok?
Possible
About 20% of wildlife watchers report a White-nest Swiftlet sighting in Sepilok on a given day, based on 500 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 74th most-seen of the 242 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
When is the best time to see a White-nest Swiftlet in Sepilok?
October
In that month about 30% of wildlife watchers report a White-nest Swiftlet in Sepilok on a given day, against about 10% in May, July and December–March, 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 Sepilok the best place to see a White-nest Swiftlet?
10th of 19
Of the 19 parks where we can rate White-nest Swiftlet sightings, Sepilok ranks 10th at about 20%. 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 Sepilok (500 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.