By Brian Ralphs - Flickr: Cape Grassbird, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=14908739
Sanger Grasvoel
Sources:
(*) https://en.wikipedia.org/wiki/Cape_grassbird
(*) https://ebird.org/species/capgra1
(*) https://search.macaulaylibrary.org/catalog?taxonCode=capgra1