Ключевые слова: animal, animals, aragon, avian, bird, bird watch, bird watching, birding, birds, black, carrion crow, carrion crows, color, colors, colour, colours, corvus corone, crow, crows, dry, fauna, gallocanta lagoon, grass, grassland, grasslands, life, meadow, meadows, natural, natural reserve, nature, ornithology, pair, pairs, plain, plains, spain, species, two, vertebrate, vertebrates, walk, walking, wild, wildlife, zoology,