Eurillas gracilis
Silhouette: PhyloPic
In 3 days ~40% in a week ~70%
The little grey greenbul (Eurillas gracilis) is a species of the bulbul family of passerine birds. It is widely distributed across the African tropical rainforest. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical swamps.
The little grey greenbul was originally described in the genus Andropadus and was re-classified to the genus Eurillas in 2010. Alternatively, some authorities classify the little greenbul in the genus Pycnonotus. Alternate names for the little grey greenbul include the grey greenbul and little grey bulbul.
Three subspecies are recognized. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Semuliki National Park | 🇺🇬 Uganda | |
| 2 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 3 | Kibale National Park | 🇺🇬 Uganda |
Possible
About 20% of wildlife watchers report a Gray Greenbul sighting in Semuliki National Park on a given day, based on 60 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 105th most-seen of the 280 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
November
In that month about 30% of wildlife watchers report a Gray Greenbul in Semuliki National Park on a given day, against about 10% in May–July, October and December–February, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Gray 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.
Yes
Of the 3 parks where we can rate Gray Greenbul sightings, Semuliki National Park has the highest daily chance: about 20%. Next come Bwindi Impenetrable National Park (Uganda, under 5%) and Kibale National Park (Uganda, under 5%).
Same genus: Eurillas
The closest relatives of the Gray Greenbul that you can see in Semuliki National Park (genus Eurillas, Small Greenbuls) are Little Greenbul (about 50%), Yellow-whiskered Greenbul (about 30%) and Plain Greenbul (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Gray Greenbul is recorded against all the birds logged in Semuliki National Park (60 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.
