Pelagic Cormorant (Phalacrocorax pelagicus) The Pelagic Cormorant uses its own guano (that’s poop ladies and gentlemen) to harden up its nest and attach it to the rocks of a steep cliff! Check out this pic of nesting Pelagic Cormorants below. Both photos taken on Round Island, Alaska. Pelagic Cormorants nesting on a cliff face on Round Island, Alaska.