Adult Swallow-tailed gull (Creagrus furcatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

galapagos islands ecuador wildlife birdwatching nature ornithology coastal bird seabird adult gull avian habitat ecology conservation tourism animal behavior natural habitat marine ecosystem tropical wildlife endemic species biodiversity shore endemic birds red feet black cap white belly exploration natural history rock formation island coastal ecosystem bird species unique birds marine life ecological importance fauna colorful birds breeding season nesting ground natural setting flight patterns aerial view ecosystem health animal preservation adult swallow tailed gull