Criniger calurus
Silhouette: PhyloPic
In 3 days ~60% in a week ~90%
The red-tailed greenbul (Criniger calurus), also known as the red-tailed bulbul, is a species of songbird in the bulbul family, Pycnonotidae, native to the African tropical rainforest. Alternate names for the red-tailed greenbul include the red-tailed bearded bulbul, red-tailed bulbul and thick-billed red-tailed greenbul.
Three subspecies are recognized. Found from Senegal to south-western Nigeria Image at ADW Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Semuliki National Park | 🇺🇬 Uganda | |
| 2 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 3 | Taï National Park | 🇨🇮 Ivory Coast | |
| 4 | Kibale National Park | 🇺🇬 Uganda |
Possible
About 30% of wildlife watchers report a Red-tailed Greenbul sighting in Bwindi Impenetrable National Park on a given day, based on 579 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 45th most-seen of the 400 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.
December
In that month about 40% of wildlife watchers report a Red-tailed Greenbul in Bwindi Impenetrable National Park on a given day, against about 20% in January–February, April–May, August and October, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Red-tailed Greenbul sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 4
Of the 4 parks where we can rate Red-tailed Greenbul sightings, Bwindi Impenetrable National Park ranks 2nd at about 30%. The best odds are in Semuliki National Park (Uganda, about 60%).
Same family: Pycnonotidae
The closest relatives of the Red-tailed Greenbul that you can see in Bwindi Impenetrable National Park (family Pycnonotidae, Bulbuls) are Common Bulbul (about 60%), Yellow-whiskered Greenbul (about 50%) and Slender-billed Greenbul (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Red-tailed Greenbul is recorded against all the birds logged in Bwindi Impenetrable National Park (579 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.
