Ocean birds are a diverse group of seabirds that inhabit the world's oceans. The term includes pelicans, which have seven letters, albatrosses, which have nine letters, shearwaters, which have ten letters, erns, which have three letters, seagulls, which have seven letters, terns, which have four letters, auks, which have three letters, ERNE, which have four letters, guillemots, which have nine letters, and gannets, which have six letters. These birds are adapted to life at sea, with many species having webbed feet and long wings for efficient flight over long distances. They feed on fish, squid, and other marine life, and some species even dive underwater to catch their prey.