Sykes's Warbler Iduna rama


Taxonomic note
Iduna rama (del Hoyo and Collar 2016) was previously listed as Hippolais rama.

Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: # _the_WP15.xls#.
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 9 g

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 7,250,000
Extent of Occurrence non-breeding (km2) 4,620,000
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
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: The global population size has not been quantified, but the species is described as common to abundant in Central Asia and local in Arabia (del Hoyo et al. 2006). The European population is estimated at 1,000-10,000 pairs, which equates to 2,000-20,000 mature individuals (BirdLife International 2015). However Europe forms <5% of the global range.

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats. The small European population is estimated to be increasing (BirdLife International 2015).

Country/territory distribution
Country/Territory Presence Origin Resident Breeding Non-breeding Passage
Afghanistan extant native yes
China (mainland) extant native yes
India extant native yes
Iran, Islamic Republic of extant native yes
Kazakhstan extant native yes
Kuwait extant native yes
Kyrgyzstan extant native yes
Oman extant native yes
Pakistan extant native yes
Qatar extant vagrant
Russia extant native yes
Russia (European) extant native yes
Saudi Arabia extant vagrant yes
Sri Lanka extant native yes
Tajikistan extant native yes
Turkmenistan extant native yes
United Arab Emirates extant native yes
United Kingdom extant vagrant
Uzbekistan extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Iran, Islamic Republic of Hamoun-i Sabari and Hamoun-i Hirmand
Iran, Islamic Republic of Hari Rud valley near Sarrakhs
Kazakhstan Altyn-Emel National Park
Kazakhstan Arys-Karaktau State Reserved Zone
Kazakhstan Ili River Delta
Kazakhstan Kapchagay Canyon
Kazakhstan Kenshektau Mountains
Kazakhstan Topar Lake System
Kazakhstan Zheltoranga
Kazakhstan Zhusandala
Tajikistan Kayrakkum Reservoir
Tajikistan Sarazm
Tajikistan Tigrovaya Balka Nature Reserve
Turkmenistan Chokrak-Tutly
Turkmenistan Delili - Garajabatyr
Turkmenistan Garadegish
Turkmenistan Gurykhovudan
Turkmenistan Mergen
Turkmenistan Muskinata
Turkmenistan Nargyz
Turkmenistan Repetek
Turkmenistan Tejen
Turkmenistan Uly Balkan
Uzbekistan Akpetky lakes and surrounding Aralkum Desert
Uzbekistan Aksay Lake and surrounding desert
Uzbekistan Ayakaghytma lake and surrounding desert
Uzbekistan Dengizkul Lake
Uzbekistan Dzheiran Ecocentre
Uzbekistan Karakyr Lakes
Uzbekistan Karnabchul Steppe
Uzbekistan Kattakurgan Reservoir
Uzbekistan Khodzha-Davlet
Uzbekistan Sudochye Lake
Uzbekistan Vardanzi

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Desert Hot major breeding
Desert Hot suitable non-breeding
Savanna Dry suitable non-breeding
Shrubland Subtropical/Tropical Dry suitable breeding
Shrubland Subtropical/Tropical Dry suitable non-breeding
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2023) Species factsheet: Iduna rama. Downloaded from on 01/06/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 01/06/2023.