Oriolus traillii
Silhouette: L. Shyamal · PhyloPic
In 3 days ~60% in a week ~90%
The maroon oriole (Oriolus traillii) is a species of bird in the family Oriolidae. It is found in Southeast Asia. The maroon oriole was originally described in the genus Pastor. Along with the black, black-and-crimson and silver orioles, it belongs to a clade of red and black orioles.
Four subspecies are recognised: The silver oriole of southern China was originally described by Stresemann as another subspecies of maroon oriole, but is now treated as a separate species; it is very similar, except that the red in the body plumage of the maroon oriole is replaced by silvery white. Genetic evidence has now shown that Stresemann's original assessment was accurate, with silver oriole genetically embedded among the subspecies of maroon oriole; the nominate subspecies of maroon oriole is more closely related to silver oriole, than it is to any of the other maroon oriole subspecies. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Namdapha National Park | 🇮🇳 India | |
| 2 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 3 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 4 | Manas National Park | 🇮🇳 India | |
| 5 | Jim Corbett National Park | 🇮🇳 India | |
| 6 | Langtang National Park | 🇳🇵 Nepal | |
| 7 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 8 | Taroko National Park | 🇹🇼 Taiwan | |
| 9 | Kaziranga National Park | 🇮🇳 India | |
| 10 | Chitwan National Park | 🇳🇵 Nepal |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | 新光動物園 | 🇹🇼 Taiwan |
Possible
About 30% of wildlife watchers report a Maroon Oriole sighting in Namdapha National Park on a given day, based on 352 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 40th most-seen of the 298 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
March and October
In those months about 40% of wildlife watchers report a Maroon Oriole in Namdapha National Park on a given day, against about 20% in May and November–December, the lowest months. Those are among Namdapha National Park's driest months, with about 150 mm of rain a month against 660 mm in July. June to September have too few records to rate.
Between 5 and 8 am
Across all the parks we cover, that three-hour window holds the most Maroon Oriole sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Yes
Of the 10 parks where we can rate Maroon Oriole sightings, Namdapha National Park has the highest daily chance: about 30%. Next come Royal Manas National Park (Bhutan, about 30%) and Doi Inthanon National Park (Thailand, about 20%).
GBIF citizen-science records
It is estimated from how often the Maroon Oriole is recorded against all the birds logged in Namdapha National Park (352 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.
