Eurystomus gularis
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~60% in a week ~90%
The blue-throated roller (Eurystomus gularis) is a species of roller in the family Coraciidae. It is native to the African tropical rainforest. The blue-throated roller was formally described in 1819 by the French ornithologist Louis Pierre Vieillot under its current binomial name Eurystomus gularis. The specific epithet gularis is Modern Latin meaning "-throated". Vieillot based his description on a specimen in the Muséum National d'Histoire Naturelle in Paris which he mistaken believed had been collected in "Australasie"; the type locality has been designated as Senegal. A molecular phylogenetic study published in 2018 found that the blue-throated roller was most closely related to the broad-billed roller (Eurystomus glaucurus).
Two subspecies are recognized: Overall, it is a dark bird, mainly chestnut brown with a bright yellow bill and a blue... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Semuliki National Park | 🇺🇬 Uganda | |
| 2 | Taï National Park | 🇨🇮 Ivory Coast | |
| 3 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 4 | Kibale National Park | 🇺🇬 Uganda | |
| 5 | Queen Elizabeth National Park | 🇺🇬 Uganda |
Possible
About 30% of wildlife watchers report a Blue-throated Roller sighting in Semuliki National Park on a given day, based on 125 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 58th most-seen of the 280 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.
February, April–May and July
In those months about 40% of wildlife watchers report a Blue-throated Roller in Semuliki National Park on a given day, against about 10% in September, the lowest month.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Blue-throated Roller sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 5 parks where we can rate Blue-throated Roller sightings, Semuliki National Park has the highest daily chance: about 30%. Next come Taï National Park (Ivory Coast, about 10%) and Bwindi Impenetrable National Park (Uganda, about 10%).
GBIF citizen-science records
It is estimated from how often the Blue-throated Roller is recorded against all the birds logged in Semuliki National Park (125 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.
