Onychognathus tenuirostris
Silhouette: Rafael Maia · PhyloPic
In 3 days ~60% in a week ~90%
The slender-billed starling (Onychognathus tenuirostris) is a species of starling in the family Sturnidae. It is found in Burundi, Democratic Republic of the Congo, Eritrea, Ethiopia, Kenya, Malawi, Rwanda, Tanzania, Uganda, and Zambia. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bale Mountains National Park | 🇪🇹 Ethiopia | |
| 2 | Aberdare National Park | 🇰🇪 Kenya | |
| 3 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 4 | Nyungwe National Park | 🇷🇼 Rwanda | |
| 5 | Semuliki National Park | 🇺🇬 Uganda | |
| 6 | Lake Nakuru National Park | 🇰🇪 Kenya | |
| 7 | Virunga National Park | 🇨🇩 Democratic Republic of the Congo | |
| 8 | Kibale National Park | 🇺🇬 Uganda |
Possible
About 30% of wildlife watchers report a Slender-billed Starling sighting in Bale Mountains National Park on a given day, based on 39 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 35th most-seen of the 117 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
May
In that month about 50% of wildlife watchers report a Slender-billed Starling in Bale Mountains National Park on a given day, against about 10% in November and December, the lowest months. March and September have too few records to rate.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Slender-billed Starling 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 8 parks where we can rate Slender-billed Starling sightings, Bale Mountains National Park has the highest daily chance: about 30%. Next come Aberdare National Park (Kenya, about 10%) and Bwindi Impenetrable National Park (Uganda, about 10%).
GBIF citizen-science records
It is estimated from how often the Slender-billed Starling is recorded against all the birds logged in Bale Mountains National Park (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.
