Storskarv   Akerselva, Great Cormorant, Kuba, Oslo, Phalacrocorax carbo, Storskarv : Akerselva, Great Cormorant, Kuba, Oslo, Phalacrocorax carbo, Storskarv  Storskarv   Lesser Great Cormorant, Mellomskarv, Phalacrocorax carbo sinensis : Lesser Great Cormorant, Mellomskarv, Phalacrocorax carbo sinensis  Storskarv parringsdrakt   Great Cormorant, Parringsdrakt, Phalacrocorax carbo, Sauholmen, Storskarv : Great Cormorant, Parringsdrakt, Phalacrocorax carbo, Sauholmen, Storskarv