The Hartlaub's gull or king gull, (Chroicocephalus hartlaubii) is a small gull, which is a non-migratory breeding resident endemic to the Atlantic Ocean coastline of South Africa and Namibia. Although it is predominantly coastal or estuarine, it is not a pelagic species, and is rarely seen at sea far from land. It was formerly sometimes considered to be a subspecies of the silver gull (C. novaehollandiae), and, as is the case with many gulls, it has...