Ключевые слова: animals, autumn, barcelona, behavior, birds, catalonia, city, ciutadella, day, eat, ecosystem, environment, europe, fauna, feeding, flock, foraging, fowl, garden, geese, goose, grass, grazing, greenery, grey, group, habitat, herd, landscape, lawn, meadow, nature, outdoors, parc, parc de la ciutadella, park, pasture, poultry, scenic, serene, spain, spanish, sunny, urban, urban oasis, water, waterfowl, wild, wild geese, wildlife,