S536 * Black Saw-wing or Blue Saw-wing or Black Rough-winged Swallow * Swartsaagvlerkswael * Psalidoprocne Pristoptera

By Martin P Goodey - Martin P Goodey, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=4645315

Swael

Sources:
(*) https://en.wikipedia.org/wiki/Black_saw-wing
(*) https://ebird.org/species/blksaw1
(*) https://search.macaulaylibrary.org/catalog?taxonCode=blksaw1