Treron waalia
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~40%
Bruce's green pigeon (Treron waalia), also known as the yellow-bellied fruit pigeon or the yellow-bellied green pigeon, is a species of bird in the family Columbidae. Its range extends across the Sudan (region) towards the Red Sea and the Southwestern Arabian foothills savanna and Dhofar Mountains.
It is a frugivore bird species that specialises on eating the fruits of a single species of fig tree, Ficus platyphylla. Unlike most birds, it does not have a uropygial gland. Despite its name, Bruce's green pigeon is mostly grey with a light yellow breast and olive green upper wings.
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mole National Park | 🇬🇭 Ghana | |
| 2 | Kidepo Valley National Park | 🇺🇬 Uganda | |
| 3 | Niokolo-Koba National Park | 🇸🇳 Senegal | |
| 4 | Awash National Park | 🇪🇹 Ethiopia | |
| 5 | Murchison Falls National Park | 🇺🇬 Uganda |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Maiduguri | 🇳🇬 Nigeria |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Disney's Animal Kingdom | 🇺🇸 United States | |
| 2 | San Diego Zoo | 🇺🇸 United States | |
| 3 | Bronx Zoo | 🇺🇸 United States | |
| 4 | Sedgwick County Zoo | 🇺🇸 United States | |
| 5 | Wilhelma | 🇩🇪 Germany | |
| 6 | San Antonio Zoo | 🇺🇸 United States | |
| 7 | Riverbanks Zoo | 🇺🇸 United States | |
| 8 | Vogelpark Avifauna | 🇳🇱 Netherlands | |
| 9 | Central Park Zoo | 🇺🇸 United States | |
| 10 | Palo Alto Junior Museum and Zoo | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Bruce's Green-Pigeon sighting in Maiduguri on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 50th most-seen of the 65 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.
April
In that month about 20% of wildlife watchers report a Bruce's Green-Pigeon in Maiduguri on a given day, against under 5% in February, August–September and December, the lowest months. That is one of Maiduguri's driest months, with about 5 mm of rain against 180 mm in August. November has too few records to rate.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Bruce's Green-Pigeon sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Maiduguri, in our data
Maiduguri is the only city on Wallace's Line with enough records to rate Bruce's Green-Pigeon sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Columbidae
The closest relatives of the Bruce's Green-Pigeon that you can see in Maiduguri (family Columbidae, Pigeons and Doves) are Laughing Dove (about 90%), Speckled Pigeon (about 80%) and African Mourning Dove (about 70%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bruce's Green-Pigeon is recorded against all the birds logged in Maiduguri (10 verified sightings), 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.
