Ключевые слова: animal, avian, beak, beautiful, behaviour, big, birding, blue, brown, clear, colourful, day, egret, feather, feathering, flight, food, great, green, grey, habitat, heron, hunting, in flight, large, leg, looking for, migratory, natural, orange, ornithology, plumage, purple, river, sharp, sky, species, standing, summer, swamp, wader, water, wetland, wild, wilderness, wildlife, yellow,