The term GULL RELATIVE refers to two species of seabirds, the SKUA and the TERN. The SKUA is a large predatory seabird that is found in the Arctic, Antarctic, and sub-Antarctic regions. It has a brownish-grey plumage and a hooked beak. The TERN is a smaller seabird with a white or grey plumage and a forked tail. It is found in temperate and tropical regions around the world. Both the SKUA and the TERN are closely related to gulls, and they share many of the same characteristics.