Eastern Orphean Warbler (Curruca crassirostris) | Details

Eastern Orphean Warbler Curruca crassirostris

Current view: Data table and detailed info

Taxonomy

Taxonomic note

Previously placed in Sylvia (del Hoyo and Collar 2016) but moved to current genus following Cai et al. (2019). Until recently considered conspecific with C. hortensis following Cramp et al. (1977–1994), Dowsett and Forbes-Watson (1993), and Sibley and Monroe (1990, 1993), but differs in its more clearly demarcated slaty crown and paler mantle and back (2); whiter underparts (1); slightly larger size including longer bill (effect size for bill 2.41, score 2); and different song, involving greater length of phrase (at least 2), number of notes per phrase (ns2), higher maximum number (five vs two) of repetitions of same note (3), and number of different note types per phrase (ns2). Form balchanica of dubious validity, perhaps part of a cline (Svensson 2012). Three subspecies currently recognized.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2021. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip.

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
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

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)	10,700,000 km²
Extent of Occurrence (non-breeding)	11,700,000 km²
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	291000-913000 mature individuals	poor	estimated	2018
Population trend	unknown	-	estimated	-
Generation length	2.32 years	-	-	-

Population justification: In Europe, the total population size is estimated at 131,000-411,000 mature individuals, with 65,900-206,000 breeding pairs (BirdLife International 2021), and comprises approximately 45% of the species' global range, so a very preliminary estimate of the global population size is between 291,000-913,000 mature individuals, although further validation of this estimate is desirable. In Europe the trend for this species is not known (BirdLife International 2021). As no other data are available to derive trends, the global population trend for this species is unknown.

Trend justification: .

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Afghanistan	extant	native		yes
Albania	extant	native		yes
Armenia	extant	native		yes
Austria	extant	vagrant
Azerbaijan	extant	native		yes
Bahrain	extant	native				yes
Bosnia and Herzegovina	extant	native		yes
Bulgaria	extant	native		yes
Croatia	extant	native		yes
Cyprus	extant	native				yes
Czechia	extant	vagrant
Egypt	extant	native
Eritrea	extant	native
Ethiopia	extant	native
France	extant	native		yes
Georgia	extant	native		yes
Germany	extant	vagrant
Greece	extant	native		yes		yes
Iran, Islamic Republic of	extant	native	yes			yes
Iraq	extant	native		yes		yes
Israel	extant	native		yes
Jordan	extant	native		yes		yes
Kazakhstan	extant	native		yes
Kuwait	extant	native				yes
Kyrgyzstan	extant	native		yes
Lebanon	extant	native		yes		yes
Luxembourg	extant	vagrant
Malta	extant	vagrant
Montenegro	extant	native		yes
Nepal	extant	vagrant
North Macedonia	extant	native		yes
Oman	extant	native			yes	yes
Palestine	extant	native		yes		yes
Qatar	extant	native				yes
Saudi Arabia	extant	native				yes
Senegal	extant	native
Serbia	extant	native		yes
Slovakia	extant	vagrant
Slovenia	possibly extinct	native		yes
South Sudan	extant	native			yes
Sudan	extant	native
Syria	extant	native		yes		yes
Tajikistan	extant	native		yes
Türkiye	extant	native		yes
Turkmenistan	extant	native		yes
United Arab Emirates	extant	native			yes	yes
Uzbekistan	extant	native		yes
Yemen	extant	native			yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Armenia	Meghri
Greece	East Lakonia mountains
Greece	Filiouri valley and eastern Rodopi mountains
Greece	Mount Mavrovouni, Larisa
Greece	Mount Taygetos
Greece	National Park of Dadia - Lefkimi - Soufli forest

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	breeding
Artificial/Terrestrial	Rural Gardens	suitable	breeding
Grassland	Subtropical/Tropical Dry	suitable	non-breeding
Savanna	Dry	suitable	non-breeding
Shrubland	Mediterranean-type Shrubby Vegetation	major	breeding
Shrubland	Subtropical/Tropical Dry	suitable	non-breeding
Shrubland	Subtropical/Tropical Dry	suitable	breeding
Altitude	0 - 3000 m	Occasional altitudinal limits

Utilisation

Purpose	Scale
Sport hunting/specimen collecting	subsistence, national

Recommended citation
BirdLife International (2024) Species factsheet: Eastern Orphean Warbler Curruca crassirostris. Downloaded from https://datazone.birdlife.org/species/factsheet/eastern-orphean-warbler-curruca-crassirostris 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.