Eastern Olivaceous Warbler

Iduna pallida (Hemprich & Ehrenberg, 1833) OLIWA 12550
Family: Passeriformes > Acrocephalidae

Recently separated as a species from the western form, Eastern Olivaceous Warbler is an extremely rare visitor to Britain & Ireland.

The breeding range extends from northern China west to Croatia, with other populations in central and north-west of Africa.

Select a topic for more facts and statistics about the Eastern Olivaceous Warbler

  • Breeding
  • Winter
310 records observations recorded by BTO surveyors
310 records



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Status and Trends

Population size and trends and patterns of distribution based on BTO surveys and atlases with data collected by BTO volunteers.


This species can be found on the following statutory and conservation listings and schedules.


We have no population estimates for this scarce species.


This species is a rare vagrant and was recorded during Bird Atlas 2007–11 as shown on the map.

Eastern Olivaceous Warbler breeding distribution 2008-11
Britain and Ireland Breeding Distribution 2008-2011.
More from the Atlas Mapstore.

Occupied 10-km squares in UK

European Distribution Map

European Breeding Bird Atlas 2


Eastern Olivaceous Warbler is a very rare autumn vagrant.

Weekly occurence of Eastern Olivaceous Warbler from BirdTrack
Weekly occurrence patterns (shaded cells) and reporting rates (vertical bars) based on BirdTrack data. Reporting rates give the likelihood of encountering the species each week.


Information about movement and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.


View a summary of recoveries in the Online Ringing Report.


Lifecycle and body size information about Eastern Olivaceous Warbler, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.


Sample sizes are too small to report Productivity and Nesting statistics for this species.


Sample sizes are too small to report Biometrics for this species.

Feather measurements and photos on featherbase


For information in another language (where available) click on a linked name

Welsh: Telor Llywd
Catalan: busqueta pàl·lida
Czech: sedmihlásek šedý
Danish: Bleg Gulbug
Dutch: Oostelijke Vale Spotvogel
Estonian: leet-käosulane
Finnish: vaaleakultarinta
French: Hypolaïs pâle
German: Blassspötter
Hungarian: halvány geze
Icelandic: Fölsöngvari
Irish: Ceolaire Bánlíoch
Italian: Canapino pallido orientale
Latvian: blavais kaukis
Lithuanian: blyškioji tošinuke
Norwegian: Bleksanger
Polish: zaganiacz blady
Portuguese: felosa-pálida
Slovak: sedmohlások bledý
Slovenian: bledi vrtnik
Spanish: Zarcero pálido
Swedish: eksångare

Links to more information from ConservationEvidence.com

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