Pycnonotus brunneus
Silhouette: Andy Wilson · PhyloPic
In 3 days ~20% in a week ~50%
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 |
With luck
About 10% of wildlife watchers report a Red-eyed Bulbul sighting in Tanjung Puting National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 54th most-seen of the 66 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
March and May–January
In those months about 10% of wildlife watchers report a Red-eyed Bulbul in Tanjung Puting National Park on a given day, against under 5% in February, the lowest month. April has too few records to rate.
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.
11th of 12
Of the 12 parks where we can rate Red-eyed Bulbul sightings, Tanjung Puting National Park ranks 11th at about 10%. 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 Tanjung Puting National Park (genus Pycnonotus, Typical Bulbuls) are Olive-winged Bulbul (about 50%) and Yellow-vented Bulbul (about 10%), 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 Tanjung Puting National Park (12 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.
