This taxon is Not Recognised as a species by BirdLife International.
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Apus pacificus is split into A. pacificus, A. cooki, A. salimali and A. leuconyx by Leader (2011), however the BLTWG do not consider that the evidence assembled is not fully presented and compared, and an examination of material in BMNH, which Leader also used, failed to confirm certain plumage differences itemised in his paper as (a) consistent and in some cases (b) existent (for example, he tabulates [p.83] the underwing-coverts of cooki as black and contrasting with the rest of underwing and of leuconyx as dark brown and similar in colour to rest of underwing, but in birds we examined we could not detect this distinction). Leader refers to clear differences in voice between the taxa he seeks to split, and we think it is necessary to produce this evidence to reinforce the morphological distinctions that can legitimately be itemised.
Further web sources of information
View photos and videos, and hear sounds of this species from the Internet Bird Collection
BirdLife International (2013) Species factsheet: Apus horus. Downloaded from http://www.birdlife.org on 11/12/2013. Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 11/12/2013.
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
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|Current IUCN Red List category||Not Recognised|
|Species name author||(Heuglin, 1869)|