What are the chances of seeing a Yellow-vented Bulbul in Bangkok?
Likely
About 50% of wildlife watchers report a Yellow-vented Bulbul sighting in Bangkok on a given day, based on 5,745 verified sightings from GBIF citizen-science data. It is the 15th most-seen of the 277 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 Bangkok?
June and September
In those months about 60% of wildlife watchers report a Yellow-vented Bulbul in Bangkok on a given day, against about 50% in July–August and October–May, the lowest months. Those are among Bangkok's wettest months, with about 220 mm of rain a month against 10 mm in December.
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 Bangkok the best place to see a Yellow-vented Bulbul?
15th of 20
Of the 20 cities where we can rate Yellow-vented Bulbul sightings, Bangkok ranks 15th at about 50%. The best odds are in Phnom Penh (Cambodia, over 90%), Denpasar (Indonesia, about 90%) and Davao City (Philippines, about 90%).
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 Bangkok (5,745 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.