Rubigula erythropthalmos
Silhouette: PhyloPic
In 3 days ~20% in a week ~50%
The spectacled bulbul (Rubigula erythropthalmos), also known as the lesser brown bulbul, is a member of the bulbul family of passerine birds. It is found on the Malay Peninsula, Sumatra, and Borneo. The spectacled bulbul was originally described in the genus Ixos. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Luang National Park | 🇹🇭 Thailand | |
| 2 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 3 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 4 | Khao Sok National Park | 🇹🇭 Thailand | |
| 5 | Sepilok | 🇲🇾 Malaysia | |
| 6 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 7 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 8 | Kinabalu Park | 🇲🇾 Malaysia | |
| 9 | Kerinci Seblat National Park | 🇮🇩 Indonesia | |
| 10 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kuala Lumpur | 🇲🇾 Malaysia |
With luck
About 10% of wildlife watchers report a Spectacled Bulbul sighting in Way Kambas National Park on a given day, based on 21 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 156th most-seen of the 205 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.
October
In that month about 30% of wildlife watchers report a Spectacled Bulbul in Way Kambas National Park on a given day, against under 5% in May, July and September, the lowest months. November to February have too few records to rate.
Between 2 and 5 am
Across all the parks we cover, that three-hour window holds the most Spectacled 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.
7th of 10
Of the 10 parks where we can rate Spectacled Bulbul sightings, Way Kambas National Park ranks 7th at about 10%. The best odds are in Khao Luang National Park (Thailand, about 60%), Danum Valley Conservation Area (Malaysia, about 50%) and Taman Negara National Park (Malaysia, about 40%). All parks ranked.
Same family: Pycnonotidae
The closest relatives of the Spectacled Bulbul that you can see in Way Kambas National Park (family Pycnonotidae, Bulbuls) are Yellow-vented Bulbul (about 50%), Cream-vented Bulbul (about 40%) and Olive-winged Bulbul (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Spectacled Bulbul is recorded against all the birds logged in Way Kambas National Park (21 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.
