Ключевые слова: animal, aquatic, beak, beautiful, biosphere, bird, birding, birdwatching, danube, day, delta, environment, fauna, lake, life, migratory, natural, nature, nature landscape, ornithology, outdoor, outside, pelecanus, pelican, protected, reservation, reserve, romania, sky, species, tourism, water, waterfowl, wetland, white, wild, wilderness, wildlife,