S531 * Grey-rumped Swallow * Gryskruisswael * Pseudhirundo Griseopyga

By Zieger M - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=121785617
Swael
Sources:
(*) https://en.wikipedia.org/wiki/Grey-rumped_swallow
(*) https://ebird.org/species/gyrswa1
(*) https://search.macaulaylibrary.org/catalog?taxonCode=gyrswa1