Iduna pallida
Silhouette: Sheatherius · PhyloPic
In 3 days ~60% in a week ~90%
The eastern olivaceous warbler (Iduna pallida), known simply as the olivaceous warbler when its western relative is referred to as the 'isabelline warbler', is a small passerine bird with drab plumage tones, that is native to the Old World. For the most part it breeds in southeastern Europe, the Middle East and adjacent western Asia, and winters in the northern Afrotropics.
The eastern olivaceous warbler is a "warbler", formerly placed in the Old World warblers when these were a paraphyletic wastebin taxon. It is now considered a member of the acrocephaline warblers, Acrocephalidae, in the tree warbler genus Iduna. It was formerly regarded as part of a wider "olivaceous warbler" species, but as a result of modern taxonomic developments, this species is now usually considered distinct from the western olivaceous warbler, Iduna opaca.
Keyserling and Blasius gave no explanation of the genus name Iduna. The specific pallida is Latin for "pale". This small passerine bird is found in dry open country, including cultivation, with bushes or some trees. Like most warblers it is insectivorous.
It is migratory, wintering in sub-Saharan Africa... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Awash National Park | 🇪🇹 Ethiopia | |
| 2 | Tsavo West National Park | 🇰🇪 Kenya | |
| 3 | Tsavo East National Park | 🇰🇪 Kenya | |
| 4 | Samburu National Reserve | 🇰🇪 Kenya | |
| 5 | Mkomazi National Park | 🇹🇿 Tanzania | |
| 6 | Lake Manyara National Park | 🇹🇿 Tanzania | |
| 7 | Nairobi National Park | 🇰🇪 Kenya | |
| 8 | Tarangire National Park | 🇹🇿 Tanzania | |
| 9 | Kidepo Valley National Park | 🇺🇬 Uganda | |
| 10 | Arusha National Park | 🇹🇿 Tanzania | |
| 11 | Murchison Falls National Park | 🇺🇬 Uganda | |
| 12 | Lake Mburo National Park | 🇺🇬 Uganda | |
| 13 | Amboseli National Park | 🇰🇪 Kenya | |
| 14 | Kiskunság National Park | 🇭🇺 Hungary | |
| 15 | Serengeti National Park | 🇹🇿 Tanzania | |
| 16 | Queen Elizabeth National Park | 🇺🇬 Uganda |
Possible
About 30% of wildlife watchers report an Eastern Olivaceous Warbler sighting in Jerusalem on a given day, based on 1,303 verified sightings from GBIF citizen-science data. It is the 34th most-seen of the 192 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.
May
In that month about 80% of wildlife watchers report an Eastern Olivaceous Warbler in Jerusalem on a given day, against under 5% in October to February, the lowest months. That is one of Jerusalem's driest months, with about 5 mm of rain against 90 mm in January.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Eastern Olivaceous Warbler sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 26 cities where we can rate Eastern Olivaceous Warbler sightings, Jerusalem ranks 2nd at about 30%, level with the leaders once rounded. The best odds are in N'Djamena (Chad, about 30%).
Same family: Acrocephalidae
The closest relatives of the Eastern Olivaceous Warbler that you can see in Jerusalem (family Acrocephalidae, Reed Warblers and Allies) are Eurasian Reed-Warbler (about 40%), Sedge Warbler (about 20%) and Olive-tree Warbler (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eastern Olivaceous Warbler is recorded against all the birds logged in Jerusalem (1,303 verified sightings), 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.
