Ключевые слова: aves, background, biology, bird, breeding, brown, bush, close, color, colorful, common, communis, ecological, europe, fauna, fly, forest, green, grey, isolated, long, migrant, nature, ornithology, passeriformes, passerine, perched, perching, singing, single, small, song, songbird, spring, sylvia, sylviidae, tree, unprotected, warbler, whitethroat, wild, wildlife,