Ключевые слова: animals in the city, animals in the street, are going in single file, birds, bringing chicks up, car, cars, chick, chicks, city, ducks family, ducks in the street, ducks mum, family, in single file, in the large city, mallard, mother, motherhood, nature, nest, small duck, small duckling, spring, street, streets, the large urbanized area, the road traffic, walk, walk in single file, wild animals in the city, young, young ducks,