Ключевые слова: animal, beauty, bird, bird watching, birds, blue, clear, common, common crane, couple, crane, cranes, day, early, feather, flapping, flight, flock, flying, gray, group, grus, grus grus, mates, migrating, migration, nature, outdoors, pair, season, side by side, silhouette, sky, spring, springtime, summer, sweden, teamwork, together, travel, two, under, vertical, waterfowl, wild, wildlife, wing,