VU
Abd al Kuri Sparrow Passer hemileucus



Taxonomy

Taxonomic note
Until recently considered conspecific with P. insularis, but differs in its smaller size (mean male tail, n=5, 55 mm vs 60.55, n=18, in insularis (Kirwan 2008); at least 1); (in male) paler, shorter throat patch (2); whitish vs smudgily grey-black upper breast below throat patch (2); bold white wingstripe (white tips of median coverts) (2); narrower black eyeline (ns1); paler grey crown and upperparts with weaker black streaking (ns1); almost pure white vs pale grey underparts (ns1); and (in female) no trace of grey throat patch of female insularis (ns1). Monotypic.

Taxonomic source(s)
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
- - D1

Red List history
Year Category Criteria
2022 Vulnerable D1
2016 Vulnerable D1
2012 Vulnerable D1
2010 Vulnerable D1; D2
2008 Not Recognised
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status not a migrant Forest dependency does not normally occur in forest
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 244 km2 medium
Area of Occupancy (breeding/resident) 244 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 250-999 mature individuals medium estimated 2009
Population trend decreasing poor suspected -
Generation length 3.2 years - - -
Number of subpopulations 2-50 - - -
Percentage of mature individuals in largest subpopulation 1-89% - - -

Population justification: The population has been estimated at fewer than 1,000 individuals (Ryan et al. 2009). The number of pairs is estimated to be c. 400, equivalent to c. 800 mature individuals (R. Porter in litt. 2016). To account for uncertainty, the population is placed here in the band of 250-999 mature individuals.

Trend justification: The population was previously suspected to be stable in the absence of any identified threats (R. Porter in litt. 2010). However, new information suggests that it may be experiencing declines after cyclones, and it is also subject to hunting for food which appears to be increasing (A. Saeed Suleiman in litt. 2020). Thus a decline is tentatively suspected (A. Saeed Suleiman in litt. 2016). Robustly establishing the current population size and current trend is a priority: evidence for a continuing decline would result in reassessment at a higher Red List category.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Yemen extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Yemen Abd al-Kuri (Socotra)

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Urban Areas suitable resident
Rocky areas (eg. inland cliffs, mountain peaks) suitable resident
Shrubland Subtropical/Tropical Dry suitable resident
Altitude 0 - 745 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Species mortality
Climate change & severe weather Storms & flooding Timing Scope Severity Impact
Ongoing Majority (50-90%) Negligible declines Low Impact: 5
Stresses
Ecosystem degradation, Species mortality

Utilisation
Purpose Scale
Food - human subsistence

Recommended citation
BirdLife International (2024) Species factsheet: Abd al Kuri Sparrow Passer hemileucus. Downloaded from https://datazone.birdlife.org/species/factsheet/abd-al-kuri-sparrow-passer-hemileucus on 23/12/2024.
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 23/12/2024.