Iduna natalensis
Silhouette: Sheatherius · PhyloPic
In 3 days ~30% in a week ~60%
The African yellow warbler (Iduna natalensis), also known as Natal yellow warbler, dark-capped yellow warbler or yellow flycatcher-warbler, is a species of Acrocephalidae warblers; formerly, these were placed in the paraphyletic "Old World warblers".
The African yellow warbler is a medium-sized warbler in which the whole of the upperparts and tail are yellowish-brown, with a slightly browner crown and yellower rump. The wings have brown feathers edged with yellow. The underparts are bright yellow with an olive wash on the sides of the breast, flanks and lower belly. The bill is pale on the upper mandible and blackish on the lower, and the legs are blackish. Females have duller underparts, and the juveniles are similar to the males but are buffier. The total length is 13 cm (5.1 in) and the birds weigh between 10 and 15 g (0.35 and 0.53 oz).
The song of the African yellow warbler is a rapid series of throaty and varied notes preceded by a few raspy notes, for example, "chip-chip-chip- whee-lee-wheeo". The alarm call is a sharp "tsk" or "chirr". The African yellow warbler is a bird of rank vegetation and occurs in reeds, overgrown waterside... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mkomazi National Park | 🇹🇿 Tanzania | |
| 2 | Nairobi National Park | 🇰🇪 Kenya | |
| 3 | Arusha National Park | 🇹🇿 Tanzania | |
| 4 | Volcanoes National Park | 🇷🇼 Rwanda | |
| 5 | Gorongosa National Park | 🇲🇿 Mozambique | |
| 6 | Queen Elizabeth National Park | 🇺🇬 Uganda | |
| 7 | Virunga National Park | 🇨🇩 Democratic Republic of the Congo | |
| 8 | Aberdare National Park | 🇰🇪 Kenya | |
| 9 | Kibale National Park | 🇺🇬 Uganda | |
| 10 | Ngorongoro Conservation Area | 🇹🇿 Tanzania | |
| 11 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 12 | Lake Mburo National Park | 🇺🇬 Uganda | |
| 13 | iSimangaliso Wetland Park | 🇿🇦 South Africa | |
| 14 | Kruger National Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Harare | 🇿🇼 Zimbabwe | |
| 2 | Nairobi | 🇰🇪 Kenya | |
| 3 | Addis Ababa | 🇪🇹 Ethiopia | |
| 4 | Kigali | 🇷🇼 Rwanda | |
| 5 | Durban | 🇿🇦 South Africa |
With luck
About 10% of wildlife watchers report an African Yellow-Warbler sighting in Arusha National Park on a given day, based on 64 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 145th most-seen of the 373 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
March and April
In those months about 20% of wildlife watchers report an African Yellow-Warbler in Arusha National Park on a given day, against under 5% in January, June and September, the lowest months. Those are among Arusha National Park's wettest months, with about 330 mm of rain a month against 65 mm in September.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most African Yellow-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.
3rd of 14
Of the 14 parks where we can rate African Yellow-Warbler sightings, Arusha National Park ranks 3rd at about 10%. The best odds are in Mkomazi National Park (Tanzania, about 20%) and Nairobi National Park (Kenya, about 10%).
GBIF citizen-science records
It is estimated from how often the African Yellow-Warbler is recorded against all the birds logged in Arusha National Park (64 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.
