A white swan (Cygnus) in a river with a colourful golden reflection of a treed hillside with a castle ruin and blue sky, Bernkastel, Germany

outdoors day daytime animal color colour tranquil reflection gold history reflections woods swimming hillside golden ruins castle historic bird pond reflected reflecting ruin swan german seasonal swans cygnus germany side view ponds autumn colours castles rivers full length aves domesticated animals animals white historical blue sky blue orange outside nobody season trees seasons forest autumn fall foliage river tree birds one animal color image water non urban scene fall colours domesticated animal colour image no one no people