Eurylaimus ochromalus
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~40%
The black-and-yellow broadbill (Eurylaimus ochromalus) is a species of bird in the typical broadbill family Eurylaimidae. A small, distinctive species, it has a black head, breastband, and upperparts, a white neckband, yellow streaking on the back and wings, and vinous-pink underparts that turn yellow towards the belly. The beak is bright blue, with a green tip to the upper mandible and black edges. It shows some sexual dimorphism, with the black breastband being incomplete in females.
Native to Brunei, Indonesia, Malaysia, Myanmar, Singapore, and Thailand, it inhabits evergreen forest, dipterocarp forest, swamp forest, heath forest, and forest edge, along with secondary forest and plantations that contain large trees. Mainly inhabiting lowlands, the species is found up to elevations of 1,220 m (4,000 ft). The black-and-yellow broadbill is mainly insectivorous, but also feeds on molluscs and incidentally takes fruit.
The black-and-yellow broadbill breeds during the dry season throughout its range, with both sexes helping build a large, untidy, pear-shaped nest out of moss, fungal mycelia, and leaves. Eggs are laid in clutches of two or three, sometimes containing a fourth runt egg, and are incubated by both sexes. The species is listed as near-threatened by the IUCN because of a decline in its population caused by habitat loss. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Luang National Park | 🇹🇭 Thailand | |
| 2 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 3 | Sepilok | 🇲🇾 Malaysia | |
| 4 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 5 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 6 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 7 | Khao Sok National Park | 🇹🇭 Thailand | |
| 8 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 9 | Tanjung Puting National Park | 🇮🇩 Indonesia | |
| 10 | Kinabalu Park | 🇲🇾 Malaysia | |
| 11 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 12 | Kerinci Seblat National Park | 🇮🇩 Indonesia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kuala Lumpur | 🇲🇾 Malaysia |
With luck
About 10% of wildlife watchers report a Black-and-yellow Broadbill sighting in Gunung Leuser National Park on a given day, based on 35 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 82nd most-seen of the 166 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
June
In that month about 20% of wildlife watchers report a Black-and-yellow Broadbill in Gunung Leuser National Park on a given day, against under 5% in April–May and October–November, the lowest months.
Between midnight and 3 am
Across all the parks we cover, that three-hour window holds the most Black-and-yellow Broadbill 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 Black-and-yellow Broadbill sightings, Gunung Leuser National Park ranks 11th at about 10%. The best odds are in Khao Luang National Park (Thailand, about 60%), Danum Valley Conservation Area (Malaysia, about 50%) and Sepilok (Malaysia, about 50%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Black-and-yellow Broadbill is recorded against all the birds logged in Gunung Leuser National Park (35 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.
