Ключевые слова: animal, avian, beak, bill, bird, birdwatching, branch, brown, curruca, environment, essex, fauna, feather, green, habitat, lesser, marshes, natural, nature, ornithology, outdoor, perched, perching, plumage, rainham, sitting, small, songbird, spring, sylvia, sylviidae, tree, twig, uk, white, whitethroat, wild, wildlife, zoology,