Western olivaceous warbler

Western olivaceous warbler
Collected in Zouala, Morocco, April 2011
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Acrocephalidae
Genus: Iduna
Species:
I. opaca
Binomial name
Iduna opaca
(Cabanis, 1851)
Distribution of Western Olivaceous Warbler
  Summer Resident (Breeding)
  Winter Visitor
Synonyms

Hippolais opaca

The western olivaceous warbler (Iduna opaca), also known as 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.