Olive-tree Warbler Hippolais olivetorum


Taxonomic note

Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: # _the_WP15.xls#.
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: # _the_WP15.xls#.
Cramp, S. and Perrins, C.M. 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
Cramp, S.; Perrins, C. M. 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status full migrant Forest dependency Does not normally occur in forest
Land mass type Average mass -

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,510,000
Extent of Occurrence non-breeding (km2) 3,800,000
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 23000-55999 poor estimated 2012
Population trend Stable suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 4 - - -

Population justification: In Europe (which covers c.90% of the breeding range), the breeding population is estimated to be 10,800-25,000 pairs, which equates to 21,500-50,100 mature individuals (BirdLife International 2015). So a very preliminary estimate of the global population size is 23,800-55,600 mature individuals, although further validation of this estimate is needed.

Trend justification: In Europe the population size is estimated to be stable (BirdLife International 2015).

Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Albania N Extant Yes
Algeria V Extant
Bosnia and Herzegovina N Extant Yes
Botswana N Extant
Bulgaria N Extant Yes
Cameroon V Extant
Croatia N Extant Yes
Cyprus N Extant
Czechia N Extant
Djibouti V Extant
Egypt N Extant
Eritrea V Extant
Ethiopia N Extant
Germany V Extant
Greece N Extant Yes Yes
Israel N Extant
Italy V Extant
Jordan N Extant Yes
Kenya N Extant
Kuwait N Extant Yes
Lebanon N Extant Yes Yes
Malawi N Extant
Montenegro N Extant Yes
Niger V Extant
Nigeria V Extant
North Macedonia N Extant Yes
Oman V Extant Yes
Palestine N Extant Yes
Romania V Extant
Saudi Arabia N Extant Yes
Serbia N Extant Yes
Somalia V Extant
South Africa N Extant
Spain V Extant
Sudan N Extant Yes
Syria N Extant Yes Yes
Tanzania N Extant
Turkey N Extant Yes
Ukraine V Extant
Yemen N Extant Yes
Zambia N Extant
Zimbabwe N Extant

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Bulgaria Sakar
Bulgaria Derventski Heights
Greece Akarnanika mountains
Greece Amvrakikos gulf
Greece National Park of Dadia - Lefkimi - Soufli forest
Greece Divari Pylou (Gialova) lagoon and Sfaktiria island
Greece East Lakonia mountains
Greece Islands and islets of northern Sporades and northwestern coast of Alonnisos
Greece Kythira island
Greece Dionysades islets, Crete
Greece Apsalos and Moglenitsa gorges
Greece Kato Olympos, Tempi gorge and mount Ossa
Greece Filiouri valley and eastern Rodopi mountains
Greece Mount Mavrovouni, Larisa
Greece Reservoirs of former lake Karla
Greece Tilos island and surrounding islets
Greece Mount Kantili
Greece Symi island and surrounding islets
Greece Acherontas gorge and estuary
Greece Kalloni Gulf, Lesvos
Greece Lake Agras
Greece Porto Lagos, lake Vistonida and coastal lagoons
Greece Nestos delta and coastal lagoons
Greece Kalogria lagoon, Strofylia forest and Lamia marshes
Greece South forest complex of Evros prefecture
Greece Dadia - Dereio - Aisymi forest
Greece Zakynthos island
Greece Asvestades - Vrysika area
Serbia Pcinja
Greece Lake Dystos
Croatia Neretva Delta
Montenegro Lake Skadar
Turkey Karaburun and İldir Strait Islands
Syria Umm al-Tuyyur
Bulgaria Ivailovgrad Reservoir
Bulgaria Kaliakra
Bulgaria Galata
Bulgaria Batova
Bulgaria Maritsa-Parvomay
Bulgaria Adata-Tundzha
Bulgaria Ropotamo Complex
North Macedonia River Pchinja-river Petroshnica-river Kriva Reka
Bulgaria Madzharovo
North Macedonia River Topolka-river Babuna-river Bregalnica
Israel Ramot Menashe
Jordan Dana
North Macedonia Tikvesh Region
Yemen Al-Murah
Bulgaria Strandzha
Bulgaria Harmanliyska Reka
Bulgaria Emine
Bulgaria Kresna Gorge
Bulgaria Western Strandzha
Bulgaria Bakarlaka
Bulgaria Byala Reka
Bulgaria Studen Kladenets
Bulgaria Arda Bridge
Bulgaria Melnik Pyramids
Bulgaria Mesta Valley
Bulgaria Krumovitza
Lebanon Shouf Cedars Nature Reserve
Turkey Mardin Threshold
Croatia Mount Mosor, Kozjak and Trogir Hinterland
Croatia Ravni Kotari
Turkey Alaçatı
Turkey Dilek Peninsula
Turkey Datça and Bozburun Peninsula
Turkey Bey Mountains
Turkey Güllük Mountain
Turkey Köprüçay Valley
Turkey Bolkar Mountains
Turkey Amanos Mountains
Turkey Tahtalı Mountains
North Macedonia Gradsko-Rosoman-Negotino
Syria Jabal al-Shuah
Croatia Krka and Surrounding Plateau
Croatia Middle Dalmatian Islands and Peljesac Penninsula
Turkey Kizildag Izmir
Turkey Bodrum Peninsula

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable breeding
Savanna Dry suitable non-breeding
Savanna Dry suitable breeding
Shrubland Mediterranean-type Shrubby Vegetation suitable breeding
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2021) Species factsheet: Hippolais olivetorum. Downloaded from on 06/12/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from on 06/12/2021.