Pycnonotus brunneus
Silhouette: Andy Wilson · PhyloPic
In 3 days ~70% in a week ~90%
The Asian red-eyed bulbul (Pycnonotus brunneus) is a member of the bulbul family of passerine birds. It is found on the Malay Peninsula, Sumatra, and Borneo. Its natural habitat is subtropical or tropical moist lowland forests.
Alternate names for the Asian red-eyed bulbul include the brown bulbul (also used for the common bulbul), red-eyed brown bulbul, and red-eyed bulbul (also used for the African red-eyed bulbul). Two subspecies are recognized: Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Luang National Park | 🇹🇭 Thailand | |
| 2 | Sepilok | 🇲🇾 Malaysia | |
| 3 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 4 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 5 | Bako National Park | 🇲🇾 Malaysia | |
| 6 | Khao Sok National Park | 🇹🇭 Thailand | |
| 7 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 8 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 9 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 10 | Kinabalu Park | 🇲🇾 Malaysia | |
| 11 | Tanjung Puting National Park | 🇮🇩 Indonesia | |
| 12 | Kerinci Seblat National Park | 🇮🇩 Indonesia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 2 | Singapore | 🇸🇬 Singapore |
Possible
About 30% of wildlife watchers report a Red-eyed Bulbul sighting in Khao Sok National Park on a given day, based on 264 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 20th most-seen of the 213 birds we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
May
In that month about 50% of wildlife watchers report a Red-eyed Bulbul in Khao Sok National Park on a given day, against about 20% in July and October–November, the lowest months.
Between 1 and 4 am
Across all the parks we cover, that three-hour window holds the most Red-eyed Bulbul sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
6th of 12
Of the 12 parks where we can rate Red-eyed Bulbul sightings, Khao Sok National Park ranks 6th at about 30%. The best odds are in Khao Luang National Park (Thailand, about 70%), Sepilok (Malaysia, about 50%) and Taman Negara National Park (Malaysia, about 50%). All parks ranked.
Same genus: Pycnonotus
The closest relatives of the Red-eyed Bulbul that you can see in Khao Sok National Park (genus Pycnonotus, Typical Bulbuls) are Black-crested Bulbul (about 50%), Stripe-throated Bulbul (about 40%) and Ayeyarwady Bulbul (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Red-eyed Bulbul is recorded against all the birds logged in Khao Sok National Park (264 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.
