Ключевые слова: adult, animal, background, beautiful, beautifully, bird, birdwatching, breeding, bright, britain, british, colorful, colors, common, common cuckoo, contrast, copy, copy space, cuckoo, cuculidae, farm, field, flight, flying, green, habitat, heath, it sit, land, moor, moorland, nature, nobody, oeland, ornithology, outdoors, plumage, sing, small, space, spring, springtime, stick, sweden, tree, tree branch, twig, wild, wildlife,