S640 * Knysna Warbler or Knysna Scrub Warbler * Knysnaruigtesanger * Bradypterus Sylvaticus

Sanger

Sources:
(*) https://en.wikipedia.org/wiki/Knysna_warbler
(*) https://ebird.org/species/knswar1
(*) https://search.macaulaylibrary.org/catalog?taxonCode=knswar1