#1239 · 🐦 birds
Western Olivaceous Warbler
🇳🇱 Westelijke Vale Spotvogel ·Iduna opaca
📍 Kombo South, The Gambia
📍 41565 Gilena, Sevilla, España
📍 باب تاغزوت, مراكش ـ تانسيفت ـ الحوز, المغرب
📍 Cádiz, Andalucía, Spain
📍 Melilla, España
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Nik Borrow · CC BY-NC 4.0
- 2. © Thijs Valkenburg · CC BY-NC 4.0
- 3. © abcdefgewing · CC BY-NC 4.0
- 4. © Ron Knight · CC BY 4.0
- 5. © Luca Boscain · CC BY-NC 4.0
- 6. Kombo South, The Gambia:© Stephen Moores · CC BY-NC 4.0
- 7. 41565 Gilena, Sevilla, España:© naturantonioj · CC BY-NC 4.0
- 8. باب تاغزوت, مراكش ـ تانسيفت ـ الحوز, المغرب:© Gary Leavens · CC BY-NC-SA 4.0
- 9. Cádiz, Andalucía, Spain:© Christoph Moning · CC BY 4.0
- 10. Melilla, España:© Miguel · CC BY-NC 4.0
what is it?
The western olivaceous warbler , also known as isabelline warbler , ( Iduna opaca ) 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...
base stats
Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).
fun facts
- No confirmed wild sightings in the Netherlands on iNaturalist: you'd have to travel for this one.
- 417 observations worldwide on iNaturalist.
- Scientifically named by Jean Cabanis in 1850 (176 years ago).
fact sheet
- English
- Western Olivaceous Warbler
- Nederlands
- Westelijke Vale Spotvogel
- scientific name
- Iduna opaca
- class
- Aves
- order
- Passeriformes
- family
- Acrocephalidae
- IUCN Red List
- LC · least concern
- sightings in NL
- 0
- sightings in Europe
- 159
- sightings worldwide
- 417
- GBIF records in NL
- 0
- weight
- —
- length
- —
- lifespan
- —
- named
- 1850 by Jean Cabanis
IUCN in Dutch: niet bedreigd. Blank means the sources don't say.
relatives· Acrocephalidae
#0601 📷 10Sedge Warbler
🇳🇱 Rietzanger
Acrocephalus schoenobaenus
LC 👀 863 in NL
#0643 📷 8Common Reed Warbler
🇳🇱 Kleine Karekiet
Acrocephalus scirpaceus
LC 👀 322 in NL
#0727 📷 10Marsh Warbler
🇳🇱 Bosrietzanger
Acrocephalus palustris
LC 👀 90 in NL
#0736 📷 7Icterine Warbler
🇳🇱 Spotvogel
Hippolais icterina
LC 👀 78 in NL
#0772 📷 7Great Reed Warbler
🇳🇱 Grote Karekiet
Acrocephalus arundinaceus
LC 👀 37 in NL
#0847 📷 7Melodious Warbler
🇳🇱 Orpheusspotvogel
Hippolais polyglotta
LC 👀 11 in NL
#0861 📷 10Blyth's Reed Warbler
🇳🇱 Struikrietzanger
Acrocephalus dumetorum
LC 👀 9 in NL
#0933 📷 10Moustached Warbler
🇳🇱 Zwartkoprietzanger
Acrocephalus melanopogon
LC 👀 4 in NL
Sources: iNaturalist taxon 201181, Wikidata Q10772716, GBIF 5739355, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.
