What are the chances of seeing a Pied Triller in Gunung Leuser National Park?
With luck
About 10% of wildlife watchers report a Pied Triller sighting in Gunung Leuser National Park on a given day, based on 20 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 80th 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 40%, if each day is a fresh chance.
When is the best time to see a Pied Triller in Gunung Leuser National Park?
September
In that month about 20% of wildlife watchers report a Pied Triller in Gunung Leuser National Park on a given day, against under 5% in January–May, August and October, the lowest months. That is one of Gunung Leuser National Park's wettest months, with about 700 mm of rain against 150 mm in February.
What time of day is best to see a Pied Triller?
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Pied Triller sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Is Gunung Leuser National Park the best place to see a Pied Triller?
4th of 6
Of the 6 parks where we can rate Pied Triller sightings, Gunung Leuser National Park ranks 4th at about 10%. The best odds are in Way Kambas National Park (Indonesia, about 30%), Bali Barat National Park (Indonesia, about 10%) and Bako National Park (Malaysia, about 10%).
Where does the Pied Triller sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Pied Triller is recorded against all the birds logged in Gunung Leuser National Park (20 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.