Western Olivaceous Warbler
Iduna opaca
The Western Olivaceous Warbler (Iduna opaca) is a rare reed warbler found in 21 countries, weighing about 9 g. The western olivaceous warbler, also known as the isabelline warbler, is a "warbler", formerly placed in the Old World warblers when these were a paraphyletic wastebin taxon.
About the Western Olivaceous Warbler
The western olivaceous warbler, also known as the isabelline 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 eastern olivaceous warbler, Iduna pallida.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
What the Western Olivaceous Warbler sounds like
Where it lives
Recorded as a rare visitor in Germany, Italy, Sweden, France, United Kingdom.
When to see it
Best months: January, February, March, April, May, June, July, August, September, November, December, with peak activity in May. It is a resident species across most of its range.
Easily confused with
Quick questions
- What does a Western Olivaceous Warbler look like?
- The western olivaceous warbler, also known as the isabelline warbler, is a "warbler", formerly placed in the Old World warblers when these were a paraphyletic wastebin taxon.
- How big is a Western Olivaceous Warbler?
- The Western Olivaceous Warbler is a tiny sized bird weighing about 9 g.
- Where can you see a Western Olivaceous Warbler?
- The Western Olivaceous Warbler occurs in 21 countries, including Spain, Morocco, Senegal, the Gambia and Nigeria.
- What does a Western Olivaceous Warbler sound like?
- You can listen to 3 field recordings of the Western Olivaceous Warbler on this page, contributed to xeno-canto under open licences.
- What birds look similar to a Western Olivaceous Warbler?
- The Western Olivaceous Warbler is most easily confused with the African Yellow Warbler, the Mountain Yellow Warbler and the Sykes's Warbler.
- Is the Western Olivaceous Warbler endangered?
- The Western Olivaceous Warbler is listed as Least Concern on the IUCN Red List.
Learn the Western Olivaceous Warbler for real
BeakBrain drills you on photos and calls until you can greet this bird by name in the field. Free to play, on any device.
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