Phylloscopus umbrovirens
Silhouette: Jiekun He · PhyloPic
In 3 days ~40% in a week ~70%
The brown woodland warbler (Phylloscopus umbrovirens) is a species of Old World warbler in the family Phylloscopidae. It is native to the eastern Afromontane. Its natural habitats are boreal forests, subtropical or tropical moist montane forests, and subtropical or tropical dry shrubland.
The range of the brown woodland warbler is quite large, with its extent of occurrence being estimated at 3,990,000 km2 (1,540,000 sq mi). Its population is assumed to be stable, though no accurate estimates of its size have been made. The 2016 IUCN Red List classifies the species as one of least concern. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Arusha National Park | 🇹🇿 Tanzania | |
| 2 | Aberdare National Park | 🇰🇪 Kenya | |
| 3 | Bale Mountains National Park | 🇪🇹 Ethiopia | |
| 4 | Ngorongoro Conservation Area | 🇹🇿 Tanzania | |
| 5 | Virunga National Park | 🇨🇩 Democratic Republic of the Congo | |
| 6 | Volcanoes National Park | 🇷🇼 Rwanda |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Addis Ababa | 🇪🇹 Ethiopia |
Possible
About 20% of wildlife watchers report a Brown Woodland-Warbler sighting in Arusha National Park on a given day, based on 114 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 114th most-seen of the 373 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.
September
In that month about 30% of wildlife watchers report a Brown Woodland-Warbler in Arusha National Park on a given day, against about 10% in February–April, June and November–December, the lowest months. That is one of Arusha National Park's driest months, with about 65 mm of rain against 440 mm in April.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Brown Woodland-Warbler sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 6 parks where we can rate Brown Woodland-Warbler sightings, Arusha National Park has the highest daily chance: about 20%. Next come Aberdare National Park (Kenya, about 10%) and Bale Mountains National Park (Ethiopia, about 10%).
GBIF citizen-science records
It is estimated from how often the Brown Woodland-Warbler is recorded against all the birds logged in Arusha National Park (114 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.
