Iduna similis
Silhouette: Sheatherius · PhyloPic
In 3 days ~60% in a week ~90%
The Mountain yellow warbler (Iduna similis) is a medium sized bird with a mix of olive and yellow coloration. This bird is native to the eastern Afromontane. It normally feeds on flies but sometimes on remaining crops from harvests. An easy way to recognize this bird is with its whistle-tone vocalizations. The Mountain yellow warbler has a conservation status of Least Concern. This bird is a species of Acrocephalidae warbler; formerly, these were placed in the paraphyletic "Old World warblers".
This is a medium-sized bird with an olive and yellow coloration throughout the plumage. The head and back of the bird are olive-green in color, while the stomach is vibrant yellow. This bird's bill is very short and dark brown. The adult male and female are very similar in looks while the adolescent is browner and a paler yellow color. This bird is known for being very territorial.
The Mountain Yellow Warbler is native to the Albertine rift and East African montane forests, Imatong and Eastern Arc mountains. Its natural habitats are subtropical or tropical moist montane forests and subtropical or tropical moist shrubland. Common areas where this... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Aberdare National Park | 🇰🇪 Kenya | |
| 2 | Volcanoes National Park | 🇷🇼 Rwanda | |
| 3 | Virunga National Park | 🇨🇩 Democratic Republic of the Congo | |
| 4 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 5 | Nyungwe National Park | 🇷🇼 Rwanda | |
| 6 | Ngorongoro Conservation Area | 🇹🇿 Tanzania |
Possible
About 20% of wildlife watchers report a Mountain Yellow-Warbler sighting in Volcanoes National Park on a given day, based on 128 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 41st most-seen of the 156 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.
August
In that month about 50% of wildlife watchers report a Mountain Yellow-Warbler in Volcanoes National Park on a given day, against about 10% in March and October–November, the lowest months. That is one of Volcanoes National Park's driest months, with about 40 mm of rain against 250 mm in April.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Mountain Yellow-Warbler sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 6
Of the 6 parks where we can rate Mountain Yellow-Warbler sightings, Volcanoes National Park ranks 2nd at about 20%. The best odds are in Aberdare National Park (Kenya, about 30%).
GBIF citizen-science records
It is estimated from how often the Mountain Yellow-Warbler is recorded against all the birds logged in Volcanoes National Park (128 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.
