What are the chances of seeing a Yellow-vented Bulbul in Sepilok?
Likely
About 50% of wildlife watchers report a Yellow-vented Bulbul sighting in Sepilok on a given day, based on 1,460 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 8th most-seen of the 242 birds we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
When is the best time to see a Yellow-vented Bulbul in Sepilok?
August and October
In those months about 60% of wildlife watchers report a Yellow-vented Bulbul in Sepilok on a given day, against about 30% in May, the lowest month.
What time of day is best to see a Yellow-vented Bulbul?
Between 1 and 4 am
Across all the parks we cover, that three-hour window holds the most Yellow-vented Bulbul 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 Yellow-vented Bulbul?
2nd of 18
Of the 18 parks where we can rate Yellow-vented Bulbul sightings, Sepilok ranks 2nd at about 50%. The best odds are in Bali Barat National Park (Indonesia, about 80%). All parks ranked.
Which relatives of the Yellow-vented Bulbul live in Sepilok?
Same genus: Pycnonotus
The closest relatives of the Yellow-vented Bulbul that you can see in Sepilok (genus Pycnonotus, Typical Bulbuls) are Red-eyed Bulbul (about 50%), Olive-winged Bulbul (about 40%) and Cream-vented Bulbul (about 20%), with each one's daily chance of a sighting.
Where does the Yellow-vented Bulbul sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Yellow-vented Bulbul is recorded against all the birds logged in Sepilok (1,460 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.