Ключевые слова: animal, ardeidae, aves, beak, bird, blue, crane, egret, egretta, environment, feather, feathers, feeding, fishing, fly, great, green, grey, heron, hunter, lake, little egret, migration, migratory, natural, nature, plumage, pond, portrait, river, swamp, tree, water, waterbird, waterfowl, white, wild, wildlife,