World Bird List

Species factsheet
Square-tailed Saw-wing (Psalidoprocne nitens)

Order: Psalidoprocne nitens
Family: Swallows, Martins (Hirundinidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
nitens Guinea to c DR Congo and nw Angola
centralis ne DR Congo
Annoncer