Ключевые слова: animal, background, beak, beautiful, bird, bird watching, birdwatching, blue, cygnus olor, day, egret, elegance, elegant, feather, feathering, fishing, grace, graceful, head, heron, lake, little, migration, migratory, mute swan, nature, ornithology, outdoor, park, plumage, pond, portrait, protection, purity, reflection, river, small white heron, swan, swim, swimming, tranquil, water, waterbird, waterfowl, white, white heron, wild, wildlife, wing, wings,