By Dick Daniels (http://theworldbirds.org/) - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=11994560
Eend
Sources:
(*) https://en.wikipedia.org/wiki/African_black_duck
(*) https://ebird.org/species/afbduc1
(*) https://search.macaulaylibrary.org/catalog?taxonCode=afbduc1