By MBoy68 on Flickr - Flickr, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=6858710
Meeu
Sources:
(*) https://en.wikipedia.org/wiki/Hartlaub%27s_gull
(*) https://ebird.org/species/hargul1
(*) https://search.macaulaylibrary.org/catalog?taxonCode=hargul1