There are more than 50 gull species around the world and, in Croatia, the yellow-legged gull nests on distant and uninhabited isles and islets in the Adriatic sea. It used to be considered a subspecies of L. cachinnans michahellis, but nowadays it is categorized as a separate species. It is between 55 and 67 cm long and its wingspan varies between 130 and 150 cm. This species is not endangered, but stable; however, it is protected by law, so locals are not allowed to take its eggs.