Criniger calurus
Silhouette: PhyloPic
In 3 days ~50% in a week ~80%
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
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Semuliki National Park | 🇺🇬 Uganda | |
| 2 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 3 | Kakum National Park | 🇬🇭 Ghana | |
| 4 | Taï National Park | 🇨🇮 Ivory Coast | |
| 5 | Kibale National Park | 🇺🇬 Uganda |
Possible
About 20% of wildlife watchers report a Red-tailed Greenbul sighting in Kakum National Park on a given day, based on 108 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 95th most-seen of the 250 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
August and September
In those months about 30% of wildlife watchers report a Red-tailed Greenbul in Kakum National Park on a given day, against about 20% in October to July, 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.
3rd of 5
Of the 5 parks where we can rate Red-tailed Greenbul sightings, Kakum National Park ranks 3rd at about 20%. The best odds are in Semuliki National Park (Uganda, about 60%) and Bwindi Impenetrable National Park (Uganda, about 30%).
GBIF citizen-science records
It is estimated from how often the Red-tailed Greenbul is recorded against all the birds logged in Kakum National Park (108 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.
