Cape Verde Is, where occurs throughout (except Santa Luzia), including small islet of Raso, but thought to breed only on Santiago, Fogo, Brava, Santo Antío and Sío Nicolau.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is unknown (2010).
Cape Verde Swift (Apus alexandri) [XC712090]
by id from Cidade Velha, Ribeira Grande de Santiago, Ribeira Grande de Santiago, Cape Verde (flight call)
Cape Verde Swift (Apus alexandri) [XC720488]
by Alain Verneau from Cancelo, Santa Cruz, Cape Verde (flight call)
Subspecies
Affinities unclear. Formerly considered conspecific with Plain Swift (Apus unicolor), but recently suggested to be more closely related to Pallid Swift (Apus pallidus), African Swift (Apus barbatus) or Nyanza Swift (Apus niansae), although these proposals appear to be based mainly on speculation.