Phyllastrephus xavieri
Silhouette: PhyloPic
In 3 days ~90% in a week >90%
Xavier's greenbul (Phyllastrephus xavieri) is a species of songbird in the bulbul family, Pycnonotidae. It is found in central Africa. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist lowland forests.
Xavier's greenbul was originally described in the genus Xenocichla (a synonym for Bleda). Some authorities have considered Xavier's greenbul to be a subspecies of the icterine greenbul. The name commemorates the French explorer Xavier Dybowski who collected natural history specimens in the Congo. Alternate names for Xavier's greenbul include the greater icterine bulbul, greater icterine greenbul and Uganda icterine bulbul.
Cameroon (south-western Cameroon) Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Semuliki National Park | 🇺🇬 Uganda |
More parks will be added in future updates.
Likely
About 60% of wildlife watchers report a Xavier's Greenbul sighting in Semuliki National Park on a given day, based on 239 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 280 birds we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
December
In that month about 90% of wildlife watchers report a Xavier's Greenbul in Semuliki National Park on a given day, against about 40% in March, the lowest month. That is one of Semuliki National Park's driest months, with about 40 mm of rain against 140 mm in May.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Xavier's 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.
Only Semuliki National Park, in our data
Semuliki National Park is the only park on Wallace's Line with enough records to rate Xavier's Greenbul sightings: about 60% of wildlife watchers there report one on a given day.
Same genus: Phyllastrephus
The closest relatives of the Xavier's Greenbul that you can see in Semuliki National Park (genus Phyllastrephus, Typical Greenbuls and Brownbuls) are Toro Olive-Greenbul (about 20%), Icterine Greenbul (about 20%) and White-throated Greenbul (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Xavier's Greenbul is recorded against all the birds logged in Semuliki National Park (239 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.
