NT
Somali Grosbeak Rhynchostruthus louisae



Taxonomy

Taxonomic note

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
- - -

Red List history
Year Category Criteria
2016 Near Threatened C2a(ii)
2013 Near Threatened C2a(ii)
2012 Near Threatened C2a(ii)
2008 Near Threatened C2a(ii)
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 24.70000076 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 38,600 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor estimated 2007
Population trend Decreasing poor estimated -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 1-19 - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations 2-100 - - -
Largest subpopulations 1-89 - - -
Generation length (yrs) 4.3 - - -

Population justification: The species is poorly known, but Kirwan and Grieve (2007) suggest its population numbers fewer than 10,000 individuals. It is placed in the population band 2,500-9,999 mature individuals, equivalent to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals.

Trend justification: This species is poorly known but probably in slow to moderate decline owing to habitat degradation and recent droughts.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Somalia N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Rocky areas (eg. inland cliffs, mountain peaks) suitable resident
Shrubland Mediterranean-type Shrubby Vegetation suitable resident
Shrubland Subtropical/Tropical Dry suitable resident
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Logging & wood harvesting Timing Scope Severity Impact
Ongoing Unknown Unknown
Stresses
Ecosystem degradation
Climate change & severe weather Droughts Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation, Reduced reproductive success

Recommended citation
BirdLife International (2019) Species factsheet: Rhynchostruthus louisae. Downloaded from http://www.birdlife.org on 22/11/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/11/2019.