Slender-tailed Nightjar (Caprimulgus clarus) [XC536881]
by isaac kilusu from Budalangi, Busia County, Kenya (song)
Slender-tailed Nightjar (Caprimulgus clarus) [XC509981]
by James Bradley from Kilimanjaro Golf and Wildlife Estate, Usa River, Arusha, Tanzania (song)
Subspecies
Formerly considered conspecific with Square-tailed Nightjar (Caprimulgus fossii), and these two form superspecies with Long-tailed Nightjar (Caprimulgus climacurus). All have frequently been separated in genus Scotornis. Northern populations formerly awarded separate subspecies, apatelius.