Western Olivaceous Warbler
Iduna opaca (Cabanis, 1851)
WEOWA 
12552
Family: Passeriformes > Phylloscopidae
Western Olivaceous Warbler is a very rare vagrant in ther UK, with the first record occuring in 2023. The species breeds mainly in north Africa and southern Iberia. It winters in sub-Saharan west Africa. Its status in the UK contrasts markedly with that of its eastern counterpart, the Eastern Olivaceous Wartbler, which has been recorded in the UK over 20 times.
Identification
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Population size and trends and patterns of distribution based on BTO surveys and atlases with data collected by BTO volunteers.
CONSERVATION STATUS
This species can be found on the following statutory and conservation listings and schedules.
| IUCN Red List of Threatened Species (global) |
Least Concern 
|
| Schedule 1 license required (to disturb) | No |
| Birds Directive Annex 1 | No |
POPULATION SIZE
We have no population estimates for this scarce species.
|
First Record
|
Shetland, 2023 |
Movement
Information about movement and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.
RINGING RECOVERIES
View a summary of recoveries in the Online Ringing Report.
Biology
Lifecycle and body size information about Western Olivaceous Warbler, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.
PRODUCTIVITY & NESTING
Sample sizes are too small to report Productivity and Nesting statistics for this species.
CODES & CLASSIFICATION
|
Field Codes
|
5-letter code: WEOWA | Euring: 12552 |
For information in another language (where available) click on a linked name
Links to more studies from ConservationEvidence.com
- Changes in the breeding bird population of a small clay river following flood alleviation works
- Breeding birds of the Buitenkaadse Oostvaardersplassen in 1997, 2002 and 2007.
- Experimental evidence for the influence of food availability on incubation attendance and hatching asynchrony in the Australian reed warbler
Read more studies about Western Olivaceous Warbler on Conservation Evidence >
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