Data Zone
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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| 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 |
| Migratory status | not a migrant | Forest dependency | does not normally occur in forest |
| Land-mass type | Average mass | 25 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 38,600 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 2500-9999 mature individuals | poor | estimated | 2007 |
| Population trend | decreasing | poor | estimated | - |
| Rate of change over the past 10 years/3 generations (longer of the two periods) | 1-19% | - | - | - |
| Rate of change over the future 10 years/3 generations (longer of the two periods) | 1-19% | - | - | - |
| Generation length | 4.3 years | - | - | - |
| Number of subpopulations | 2-100 | - | - | - |
| Percentage of mature individuals in largest subpopulation | 1-89% | - | - | - |
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 | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Somalia | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Somalia | Boorama plains |
| Somalia | Daalo |
| Somalia | Gacan Libaax |
| 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 |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Unknown | Unknown | Unknown | ||||||
|
|||||||||
| Climate change & severe weather | Droughts | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
Recommended citation
BirdLife International (2024) Species factsheet: Somali Grosbeak Rhynchostruthus louisae. Downloaded from
https://datazone.birdlife.org/species/factsheet/somali-grosbeak-rhynchostruthus-louisae on 03/12/2024.
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 03/12/2024.