LC
Spectacled Warbler Curruca conspicillata



Taxonomy

Taxonomic note
Previously placed in Sylvia (del Hoyo and Collar 2016) but moved to current genus following Cai et al. (2019). Geographical variation minor; this species said to provide “an unexpected example of lack of diversification in a songbird occurring in oceanic islands” (Illera et al. 2014). Subspecies orbitalis appears to vary clinally from N to S; Madeira birds the most distinctive, and formerly separated as subspecies bella, while those from Cape Verde Is are closest to nominate, and those from Canary Is intermediate (underparts very much like nominate, upperparts more deeply coloured). Two subspecies recognized.

Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: http://www.aerc.eu/DOCS/Bird_taxa_of_the_WP15.xls.
Cramp, S. and Simmons, K.E.L. (eds). 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
2024 Least Concern
2016 Least Concern
2014 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 -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 9,840,000 km2
Extent of Occurrence (non-breeding) 11,700,000 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 934000-2550000 mature individuals poor estimated 2018
Population trend stable - - -
Generation length 2.36 years - - -

Population justification: In Europe, the total population size is estimated at 327,000-891,000 mature individuals, with 163,000-446,000 breeding pairs (BirdLife International 2021), and comprises approximately 35% of the species' global range, so a very preliminary estimate of the global population size is between 934,000-2,550,000 mature individuals, although further validation of this estimate is desirable. In Europe, the species' population is considered to have remained relatively stable over three generations (10 years) (BirdLife International 2021). Based on these data, and the proportion of the species' global range that this region holds, the global population size is considered to be stable over three generations.

Trend justification:    .


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Algeria extant native
Cape Verde extant native
Croatia extant vagrant
Cyprus extant native yes
Egypt extant native
Ethiopia extant vagrant
France extant native yes
Gambia extant vagrant
Germany extant vagrant
Gibraltar (to UK) extant native yes
Greece extant vagrant
Iraq extant uncertain yes
Israel extant native yes
Italy extant native yes yes
Jordan extant native yes
Lebanon extant native yes
Libya extant native yes
Malta extant native yes
Mauritania extant native
Morocco extant native
Netherlands extant vagrant
Niger extant vagrant
Palestine extant native yes
Portugal extant native yes
Saudi Arabia extant vagrant yes
Senegal extant native
Spain extant native yes
Switzerland extant native yes
Syria extant native yes yes
Tunisia extant native
Türkiye extant native yes
United Kingdom extant vagrant
Western Sahara extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Algeria Belezma
Cyprus Karpasia Peninsula - Kleides Islands
Cyprus Pentadaktylos Mountains
Italy Argentario, Laguna di Orbetello Lagoon e Lago di Burano
Jordan Dana
Jordan Dibbin Forest
Lebanon Shouf Cedars Nature Reserve
Libya Karabolli
Morocco Parc National de Souss-Massa and Aglou
Morocco Parc National de Toubkal
Morocco Parc National du Haut Atlas Oriental
Morocco Parc Naturel d'Ifrane
Morocco Piste de Tagdilt
Morocco Région Fouchal - Matarka
Morocco Tamri and Imsouane
Portugal Malcata mountains
Portugal Upper River Tejo
Spain Bardenas Reales
Spain El Pardo-Viñuelas
Spain Monfragüe
Spain Mountain range and saltpans at Cabo de Gata
Spain Sierra Morena de Córdoba
Spain Toledo mountains-Cabañeros
Syria Mount Hermon
Tunisia Îles Kerkennah
Tunisia Îles Kneiss
Tunisia Jbel el Haouaria

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Desert Hot major non-breeding
Marine Intertidal Salt Marshes (Emergent Grasses) suitable breeding
Shrubland Mediterranean-type Shrubby Vegetation major breeding
Altitude   Occasional altitudinal limits  

Utilisation
Purpose Scale
Sport hunting/specimen collecting subsistence, national

Recommended citation
BirdLife International (2024) Species factsheet: Spectacled Warbler Curruca conspicillata. Downloaded from https://datazone.birdlife.org/species/factsheet/spectacled-warbler-curruca-conspicillata on 22/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 22/12/2024.