Iole propinqua
Silhouette: PhyloPic
In 3 days ~90% in a week >90%
The grey-eyed bulbul (Iole propinqua) is a species of songbird in the bulbul family, Pycnonotidae. It is found in Southeast Asia in its natural habitat of subtropical or tropical moist lowland forests. The grey-eyed bulbul was originally described in the genus Criniger and classified by some authorities within the genus Hypsipetes. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 3 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 4 | Doi Inthanon National Park | 🇹🇭 Thailand |
Likely
About 50% of wildlife watchers report a Gray-eyed Bulbul sighting in Khao Yai National Park on a given day, based on 1,587 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 6th most-seen of the 278 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.
February and December
In those months about 60% of wildlife watchers report a Gray-eyed Bulbul in Khao Yai National Park on a given day, against about 20% in September, the lowest month. Those are among Khao Yai National Park's driest months, with about 35 mm of rain a month against 330 mm in September.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most Gray-eyed Bulbul sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Yes
Of the 4 parks where we can rate Gray-eyed Bulbul sightings, Khao Yai National Park has the highest daily chance: about 50%. Next come Cat Tien National Park (Vietnam, about 30%) and Cuc Phuong National Park (Vietnam, about 20%). All parks ranked.
Same family: Pycnonotidae
The closest relatives of the Gray-eyed Bulbul that you can see in Khao Yai National Park (family Pycnonotidae, Bulbuls) are Black-crested Bulbul (about 80%), Puff-throated Bulbul (about 50%) and Stripe-throated Bulbul (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Gray-eyed Bulbul is recorded against all the birds logged in Khao Yai National Park (1,587 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.
