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LC
Forbes-Watson's Swift Apus berliozi

IUCN Red List history

Year Category
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 38.2 g

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 73,100 medium
Extent of Occurrence non-breeding (km2) 82,600 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals Unknown not applicable Not Applicable 0
Population trend Stable -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 12.5 - - -
Population justification: The global population size has not been quantified, but the species is reported to be common within its main Socotran breeding site in the Hajhir mountains (del Hoyo et al. 1999).
Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Kenya Native Extant   Yes    
Somalia Native Extant Yes      
Yemen Native Extant Yes      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Somalia Boorama plains site factsheet
Somalia Hobyo site factsheet
Somalia Jasiira lagoon and Muqdisho islets site factsheet
Somalia Jowhar - Warshiikh site factsheet
Somalia Raas Xaafuun - Raas Gumbax site factsheet
Yemen Diksam, Socotra site factsheet
Yemen Firjih/Central Socotra site factsheet
Yemen Firmihin near Jabal Keseslah, Socotra site factsheet
Yemen Hajhir mountains, Socotra site factsheet
Yemen Jabal Jaaf, Socotra site factsheet
Yemen Ra's Momi and Fikhah, Socotra site factsheet
Yemen Wadi Ayhaft, Socotra site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Urban Areas suitable breeding
Artificial/Terrestrial Urban Areas suitable non-breeding
Caves and Subterranean Habitats (non-aquatic) Caves major breeding
Caves and Subterranean Habitats (non-aquatic) Caves major non-breeding
Grassland Subtropical/Tropical Dry suitable breeding
Grassland Subtropical/Tropical Dry suitable non-breeding
Grassland Subtropical/Tropical High Altitude suitable breeding
Grassland Subtropical/Tropical High Altitude suitable non-breeding
Marine Coastal/Supratidal Coastal Brackish/Saline Lagoons/Marine Lakes suitable breeding
Marine Coastal/Supratidal Coastal Brackish/Saline Lagoons/Marine Lakes suitable non-breeding
Marine Coastal/Supratidal Coastal Freshwater Lakes suitable breeding
Marine Coastal/Supratidal Coastal Freshwater Lakes suitable non-breeding
Marine Coastal/Supratidal Sea Cliffs and Rocky Offshore Islands suitable breeding
Rocky areas (eg. inland cliffs, mountain peaks) major breeding
Rocky areas (eg. inland cliffs, mountain peaks) major non-breeding
Shrubland Subtropical/Tropical Dry suitable breeding
Shrubland Subtropical/Tropical Dry suitable non-breeding
Altitude 0 - 1200 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2014) Species factsheet: Apus berliozi. Downloaded from http://www.birdlife.org on 18/09/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 18/09/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Least Concern
Family Apodidae (Swifts)
Species name author Ripley, 1965
Population size Unknown mature individuals
Population trend Stable
Distribution size (breeding/resident) 73,100 km2
Country endemic? No
Links to further information
- Summary information on this species
- Projected distributions under climate change