Phyllastrephus cerviniventris
Silhouette: PhyloPic
In 3 days ~10%
The grey-olive greenbul (Phyllastrephus cerviniventris), or grey-olive bulbul, is a species of songbird in the bulbul family, Pycnonotidae. It is found in eastern and south-central Africa. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, and subtropical or tropical moist shrubland. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Meru National Park | 🇰🇪 Kenya | |
| 2 | Arusha National Park | 🇹🇿 Tanzania | |
| 3 | Mikumi National Park | 🇹🇿 Tanzania | |
| 4 | Kafue National Park | 🇿🇲 Zambia | |
| 5 | Lake Manyara National Park | 🇹🇿 Tanzania | |
| 6 | Ngorongoro Conservation Area | 🇹🇿 Tanzania | |
| 7 | Nairobi National Park | 🇰🇪 Kenya |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nairobi | 🇰🇪 Kenya |
Rare
Under 5% of wildlife watchers report a Gray-olive Greenbul sighting in Ngorongoro Conservation Area on a given day, based on 39 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 355th most-seen of the 519 birds we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
March and October–November
In those months about 10% of wildlife watchers report a Gray-olive Greenbul in Ngorongoro Conservation Area on a given day, against under 5% in April–September and December–February, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Gray-olive 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.
6th of 7
Of the 7 parks where we can rate Gray-olive Greenbul sightings, Ngorongoro Conservation Area ranks 6th at under 5%. The best odds are in Meru National Park (Kenya, about 10%), Arusha National Park (Tanzania, about 10%) and Mikumi National Park (Tanzania, under 5%).
GBIF citizen-science records
It is estimated from how often the Gray-olive Greenbul is recorded against all the birds logged in Ngorongoro Conservation Area (39 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.
