Although there was a variety of gulls, seemingly playing with air currents, I managed to take pictures of another black-headed gull.
Red-billed gulls (middle foreground) and black-billed gulls.
Red-billed gulls, I think, although there were also black-billed gulls flying about near here earlier in the day.
Charadriiformes is a diverse order of small to medium-large birds. It includes about 350 species and has members in all parts of the world. Most Charadriiformes live near water and eat invertebrates or other small animals; however, some are pelagic (sea birds), some occupy deserts and a few are found in thick forest.