Hylia prasina
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
The green hylia (Hylia prasina) is a monotypic genus widespread in tropical Africa, where it mostly inhabits the understory and mid-stratum of moist forest. It is a canopy insectivore which had been tentatively placed within the family of Cettiidae warblers, but in 2019 its assignment to a new family, the Hyliidae, was strongly supported.
Hylia prasina is a monotypic songbird that has proven difficult to place within the phylogenetic tree. Connections between Hylia and other genera have been attempted by comparing DNA sequences, physical similarities and even behavioural characteristics. None of these links have been sufficiently proven to allow definite classification of the green hylia.
The green hylia belongs to the order Passeriformes and the superfamily Sylvioidea, however the classification at family level is under dispute. The species is often attributed to the family Cettiidae (bush warblers) along with Scotocerca, Erythrocercus, Tesia, Cettia and Abroscopus. Investigation into indels does not support a strong relationship between Hylia and the Cettiidae.
Anatomically, the green hylia has similarities to sunbirds and warblers. Characteristics shared with sunbirds... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Semuliki National Park | 🇺🇬 Uganda | |
| 2 | Kibale National Park | 🇺🇬 Uganda | |
| 3 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 4 | Taï National Park | 🇨🇮 Ivory Coast | |
| 5 | Virunga National Park | 🇨🇩 Democratic Republic of the Congo | |
| 6 | Volcanoes National Park | 🇷🇼 Rwanda | |
| 7 | Queen Elizabeth National Park | 🇺🇬 Uganda | |
| 8 | Lake Mburo National Park | 🇺🇬 Uganda |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kampala | 🇺🇬 Uganda |
Rare
Under 5% of wildlife watchers report a Green Hylia sighting in Volcanoes National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 148th most-seen of the 156 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
June
In that month about 10% of wildlife watchers report a Green Hylia in Volcanoes National Park on a given day, against under 5% in July to May, the lowest months. That is one of Volcanoes National Park's driest months, with about 75 mm of rain against 250 mm in April.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Green Hylia sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
6th of 8
Of the 8 parks where we can rate Green Hylia sightings, Volcanoes National Park ranks 6th at under 5%. The best odds are in Semuliki National Park (Uganda, about 40%), Kibale National Park (Uganda, about 30%) and Bwindi Impenetrable National Park (Uganda, about 20%).
Same order: Passeriformes
The closest relatives of the Green Hylia that you can see in Volcanoes National Park (order Passeriformes, Perching Birds) are Streaky Seedeater (about 90%), Chubb's Cisticola (about 80%) and Common Bulbul (about 70%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Green Hylia is recorded against all the birds logged in Volcanoes National Park (7 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.
