S635 * Lesser Swamp Warbler or Cape Reed Warbler * Kaapse Rietsanger * Acrocephalus Gracilirostris

By Lip Kee - Flickr: African Reed-Warbler (Acrocephalus baeticatus), CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=29902247

Sanger

Sources:
(*) https://en.wikipedia.org/wiki/Lesser_swamp_warbler
(*) https://ebird.org/species/leswar1
(*) https://search.macaulaylibrary.org/catalog?taxonCode=leswar1