Slender-tailed Nightjar (Caprimulgus clarus) [XC754007]
by James and David Bradley from Kimana, Loitokitok, Kajiado County, Kenya (song)
Slender-tailed Nightjar (Caprimulgus clarus) [XC294734]
by Peter Boesman from East Shewa, Oromia, Ethiopia (call)
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.