Ptilopachus petrosus
Silhouette: Sheatherius · PhyloPic
In 3 days ~40% in a week ~70%
The stone partridge (Ptilopachus petrosus) is a bird of the New World quail family. This largely brown bird, which commonly holds its tail raised, is found in scrubland and lightly wooded habitats, often near rocks, from Kenya and Ethiopia to Gambia (a large part of its range is in the Sudanian Savanna).
The stone partridge was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with all the other partridge like birds in the genus Tetrao and coined the binomial name Tetrao petrosus. Gmelin's description was based on the Comte de Buffon's "Le perdrix de roche ou de la Gambia" and John Latham's "Rufous-breasted partridge". The stone partridge is now placed with Nahan's partridge in the genus Ptilopachus that was introduced in 1837 by the English naturalist William Swainson. The genus name is from the Ancient Greek ptilon meaning "feather" with pakhus meaning "thick" or "dense". The specific epithet petrosus is Latin meaning "rocky".
Four subspecies are recognised: Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Niokolo-Koba National Park | 🇸🇳 Senegal | |
| 2 | Kidepo Valley National Park | 🇺🇬 Uganda |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | San Diego Zoo | 🇺🇸 United States | |
| 2 | Walsrode World Bird Park | 🇩🇪 Germany | |
| 3 | Valencia Bioparc | 🇪🇸 Spain | |
| 4 | Avifauna | 🇪🇸 Spain |
Possible
About 20% of wildlife watchers report a Stone Partridge sighting in Kidepo Valley National Park on a given day, based on 56 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 105th most-seen of the 332 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
December
In that month about 40% of wildlife watchers report a Stone Partridge in Kidepo Valley National Park on a given day, against about 10% in January, March, June–August and November, the lowest months. That is one of Kidepo Valley National Park's driest months, with about 20 mm of rain against 130 mm in July. April and May have too few records to rate.
Between 5 and 8 pm
Across all the parks we cover, that three-hour window holds the most Stone Partridge sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
2nd of 2
Of the 2 parks where we can rate Stone Partridge sightings, Kidepo Valley National Park ranks 2nd at about 20%. The best odds are in Niokolo-Koba National Park (Senegal, about 30%).
Same order: Galliformes
The closest relatives of the Stone Partridge that you can see in Kidepo Valley National Park (order Galliformes, Landfowl) are Crested Francolin (about 70%), Clapperton's Francolin (about 70%) and Helmeted Guineafowl (about 60%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Stone Partridge is recorded against all the birds logged in Kidepo Valley National Park (56 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.
