swallow tailed gull creagus furcatus, perched on a rock on espan

america animal animals archipelago beak bird blue cliff coast coastline conservation creagrus ecology ecosystem ecotourism environment espanola eye feathers furcatus galapagos grey guano gull habitat hood island islands larus ledge marine national natural nature nocternal nocturnal ocean outdoors pacific park people red ring rocks sea seabird seabirds south species swallow tail tailed the travel water white wild wildlife