Moltoni's Warbler Curruca subalpina


Taxonomic note
Sylvia cantillans and S. subalpina (del Hoyo and Collar 2016) were previously lumped as S. cantillans following AERC TAC (2003), Cramp et al. (1977-1994), Dowsett and Forbes-Watson (1993) and Sibley and Monroe (1990, 1993).

Taxonomic source(s)
Brambilla, M.; Janni, O.; Guidali, F.; Sorace, A. 2008. Song perception among incipient species as a mechanism for reproductive isolation. Journal of Evolutionary Biology 21(3): 651-657.
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
Species attributes

Migratory status full migrant Forest dependency Low
Land mass type Average mass -

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 568,000
Extent of Occurrence non-breeding (km2) 5,660,000
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals poor estimated 2009
Population trend Increasing 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: The population size has not been estimated since the species was split.

Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Burkina Faso N Extant Yes
Cape Verde V Extant
France N Extant Yes
Gambia N Extant Yes
Italy N Extant Yes
Mali N Extant Yes
Mauritania N Extant Yes
Niger N Extant Yes
Nigeria N Extant Yes
Senegal N Extant Yes
Spain N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Spain Archipelago of Cabrera
France Golfe de Porto, presqu'île de Scandola et golfe de Galeria
Italy Mount Beigua
Italy Taro river
Italy River Cecina middle valley
Italy Tuscan Archipelago
Italy Lake Alviano
Italy Selva del Lamone
Italy Rieti mountains
Italy Orosei Gulf, Supramonte and Gennargentu
Italy San Pietro and Sant'Antioco islands
Italy Foreste Casentinesi
Italy Arezzo heathlands
Italy Argentario
Italy Argentario, Laguna di Orbetello Lagoon e Lago di Burano

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Savanna Dry suitable non-breeding
Shrubland Mediterranean-type Shrubby Vegetation major breeding
Shrubland Subtropical/Tropical Dry suitable non-breeding
Altitude 0 - 1700 m Occasional altitudinal limits  

Purpose Primary form used Life stage used Source Scale Level Timing
Sport hunting/specimen collecting - - Non-trivial Recent

Recommended citation
BirdLife International (2023) Species factsheet: Curruca subalpina. Downloaded from on 30/03/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 30/03/2023.