Swallow-tailed gull (Creagrus furcatus) in flight in the Galapagos Island Group, Ecuador

galapagos galapagos islands galapagos island group archipeligo las encantadas pacific ocean equator humbolt current el nino la nina north seymour island seymour island swallow tailed gull creagrus furcatus swallow tailed swallow tailed gull swallow tailed gull seabird sea bird tern nocturnal endemic ecuador red ring eye one animal single lone flying flight water wings