Keywords: great black-backed gull, Larus marinus, largest of gull family, king of gulls, sea gull, Scarborough Marsh, Scarborough, Maine, Cumberland County, USA, United States of America, ME, bird, birding, nature, photography, gull, chasing eagle, wildlife, bald eagle, bald eagle Haliaeetus leucocephalus, bird of prey, sea eagle, USA national bird, accipiter, gull attacking bald eagle, aerial, aerial attack, gull aerial attack