My Bird Info

Olivaceous Warbler – Wikipedia, the free encyclopedia
… two species, Western Olivaceous or Isabelline Warbler, [citation needed] Hippolais opaca, and (Eastern) Olivaceous Warbler, Hippolais pallida. These small passerine birds are found in …
en.wikipedia.org/wiki/Western_olivaceous_warbler

Western Olivaceous Warbler (Hippolais opaca)
For the purposes of our bird news services, Western Olivaceous Warbler is classed as Mega: species which have not yet occurred in the British Isles or are exceedingly rare, or are …
www.birdguides.com/species/species.asp?sp=136372

Phenology of Western Olivaceous Warbler Hippolais opaca and Eastern …
… 15- 20 Phenology of Western Olivaceous Warbler Hippolais opaca and Eastern … Species limits in Acrocephalus and Hippolais warblers from the Western Palearctic. British Birds 97 …
blx1.bto.org/pdf/ringmigration/23_1/salewski.pdf

Tree warbler – Wikipedia, the free encyclopedia
… citation needed] Hippolais pallida; Eastern Olivaceous Warbler, Hippolais opaca … 2004) Species limits in Acrocephalus and Hippolais warblers from the Western Palearctic British Birds Vol …
en.wikipedia.org/wiki/Tree_warbler

Olivaceous Warbler – Hippolais elaeica
Eastern Olivaceous Warbler Hippolais … Eastern Olivaceous Warbler has … the Portland bird as belonging to the eastern form elaeica, as opposed to the western form opaca.
www.portlandbirdobs.org.uk/bi_hippolais_elaeica.htm

BTO BirdFacts – Western Olivaceous Warbler
For details point at or click the button; for sources point at the button Western Olivaceous Warbler Hippolais opaca [Cabanis, 1850]
blx1.bto.org/birdfacts/results/bob12552.htm

African Birding Forum :: Identification Q&A :: ID of Hippolais warbler …
Any assistance with the precise ID of this Hippolais opaca … I have been reading some texts about Olivaceous Warbler and I … The ABC checklist, Birds of Africa and Birds of Western …
www.africanbirdclub.org/phorum/read.php?20,700,727

Bird Songs & Calls of Britain & Europe, Vol. 3: Cuckoos to hippolais …
Bird Songs & Calls of Britain & Europe, Vol. 3: Cuckoos to hippolais warblers … Western Olivaceous Warbler: Hippolais opaca: Olive-tree Warbler: Hippolais …
www.wildsounds.com/spp_lists/62.htm

Reference Library – redOrbit
The Olivaceous Warbler (Hippolais pallida), is a warbler formerly considered a single species. It is now recognized as two subspecies, Western Olivaceous Warbler, Hippolais opaca …
www.redorbit.com/education/reference_library/birds/olivaceous_warbler/3456/index.html

Surfbirds News: Taxonomic recommendations for British birds and …
Taxonomic recommendations for British birds and changes to the British … Western Olivaceous Warbler (Hippolais opaca) added to Category A (split from (H. pallida))
www.surfbirds.com/sbirdsnews/archives/2002/09/taxonomic_recom.html