Oriolus percivali
Silhouette: L. Shyamal · PhyloPic
In 3 days <5%
The mountain oriole (Oriolus percivali) is a bird species in the family Oriolidae. It is native to the Albertine Rift montane forests, Uganda and Kenya. Its natural habitats are subtropical or tropical moist montane forests.
The mountain oriole has been considered by some authorities to be a subspecies of the black-headed oriole or the black-winged oriole. Alternate names for the mountain oriole include the black-tailed oriole, montane oriole and Percival's oriole, the last name after Arthur Blayney Percival. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 2 | Nyungwe National Park | 🇷🇼 Rwanda | |
| 3 | Aberdare National Park | 🇰🇪 Kenya | |
| 4 | Kibale National Park | 🇺🇬 Uganda |
Rare
Under 5% of wildlife watchers report a Black-tailed Oriole sighting in Kibale National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 356th most-seen of the 366 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Black-tailed Oriole in Kibale National Park on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Black-tailed Oriole sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 4
Of the 4 parks where we can rate Black-tailed Oriole sightings, Kibale National Park ranks 4th at under 5%. The best odds are in Bwindi Impenetrable National Park (Uganda, about 40%), Nyungwe National Park (Rwanda, about 40%) and Aberdare National Park (Kenya, about 10%).
GBIF citizen-science records
It is estimated from how often the Black-tailed Oriole is recorded against all the birds logged in Kibale National Park (5 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.
