By GabrielBuissart - self-made, Delta du Sine Saloum SN., CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2131914
Meeu
Sources:
(*) https://en.wikipedia.org/wiki/Grey-headed_gull(*) https://ebird.org/species/grhgul
(*) https://search.macaulaylibrary.org/catalog?taxonCode=grhgul