Eurillas gracilis
Silhouette: PhyloPic
In 3 days ~10% in a week ~30%
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 |
Rare
Under 5% of wildlife watchers report a Gray Greenbul sighting in Bwindi Impenetrable National Park on a given day, based on 82 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 209th most-seen of the 400 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
February, June–July and September
In those months about 10% of wildlife watchers report a Gray Greenbul in Bwindi Impenetrable National Park on a given day, against under 5% in March–May, August and October–January, 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.
2nd of 3
Of the 3 parks where we can rate Gray Greenbul sightings, Bwindi Impenetrable National Park ranks 2nd at under 5%. The best odds are in Semuliki National Park (Uganda, about 20%).
Same genus: Eurillas
The closest relatives of the Gray Greenbul that you can see in Bwindi Impenetrable National Park (genus Eurillas, Small Greenbuls) are Yellow-whiskered Greenbul (about 50%), Little Greenbul (about 30%) and Plain Greenbul (about 20%), 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 Bwindi Impenetrable National Park (82 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.
