Onychognathus tenuirostris
Silhouette: Rafael Maia · PhyloPic
In 3 days ~20% in a week ~40%
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 |
With luck
About 10% of wildlife watchers report a Slender-billed Starling sighting in Bwindi Impenetrable National Park on a given day, based on 157 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 163rd most-seen of the 400 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Slender-billed Starling in Bwindi Impenetrable National Park on a given day, against under 5% in February–March, May, September and November–December, the lowest months. That is one of Bwindi Impenetrable National Park's driest months, with about 100 mm of rain against 320 mm in October.
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.
3rd of 8
Of the 8 parks where we can rate Slender-billed Starling sightings, Bwindi Impenetrable National Park ranks 3rd at about 10%. The best odds are in Bale Mountains National Park (Ethiopia, about 30%) and Aberdare National Park (Kenya, about 10%).
GBIF citizen-science records
It is estimated from how often the Slender-billed Starling is recorded against all the birds logged in Bwindi Impenetrable National Park (157 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.
