gull (svartbakur), Larus marinus Little tern, Sternula albifrons (A) Caspian tern, Hydroprogne caspia (A) Black tern, Chlidonias niger (A) White-winged tern, Chlidonias leucopterus (A) Common tern, Sterna hirundo (A) Arctic tern (terna), Sterna paradisaea Sandwich tern, Thalasseus sandvicensis (A) Loons Order: GaviiformesFamily: Gaviidae Loons are a group of aquatic birds found in many parts of North America and Northern Europe. They are the size of a large duck or small goose, which they somewhat resemble in shape when swimming, but to which they are completely unrelated. In particular, loons' legs are set very far back which assists swimming underwater but makes walking on land extremely difficult. Red-throated loon (lómur), Gavia stellata Arctic loon (øssvartur lómur), Gavia arctica (A) Pacific loon, Gavia pacifica (A) Common loon (havgás), Gavia immer Yellow-billed loon (nevgulur lómur), Gavia adamsii (A) Albatrosses Order: ProcellariiformesFamily: Diomedeidae The albatrosses are among the largest of flying birds, and the great albatrosses of the genus Diomedea have the largest wingspans of any extant birds. Yellow-nosed albatross, Thalassarche chlororhynchos (A) Black-browed albatross (súlukongur), Thalassarche melanophris (A) Southern storm-petrels Order: ProcellariiformesFamily: Oceanitidae The southern storm-petrels are relatives of the petrels and are the smallest seabirds. They feed on planktonic crustaceans and small fish picked from the surface, typically while hovering. Wilson's storm-petrel, Oceanites oceanicus (A) Northern storm-petrels Order: ProcellariiformesFamily: Hydrobatidae Though the members of this family are similar in many respects to the southern storm-petrels, including their general appearance and habits, there are enough genetic differences to warrant their placement in a separate family. European storm-petrel (drunnhvíti), Hydrobates pelagicus Leach's storm-petrel (sýldur drunnhvíti, havtyrðil), Hydrobates leucorhous Shearwaters and petrels Order: ProcellariiformesFamily: Procellariidae The procellariids are the main group of medium-sized "true petrels", characterized by united nostrils with medium septum and a long outer functional primary. Northern fulmar (havhestur), Fulmarus glacialis Fea's petrel, Pterodroma feae (A) Cory's shearwater, Calonectris borealis (A) Great shearwater, Ardenna gravis Sooty shearwater, Ardenna griseus (A) Manx shearwater (skrápur), Puffinus puffinus Boobies and gannets Order: SuliformesFamily: Sulidae The sulids comprise the gannets and boobies. Both groups are medium-large coastal seabirds that plunge-dive for fish. Northern gannet (súla), Morus bassanus Cormorants and shags Order: SuliformesFamily: Phalacrocoracidae Cormorants and shags are medium-to-large aquatic birds, usually with mainly dark plumage and areas of colored skin on the face. The bill is long, thin and sharply hooked. Their feet are four-toed and webbed. Great cormorant (hiplingur), Phalacrocorax carbo European shag (skarvur), Gulosus aristotelis