Ключевые слова: animal, apple, bird, birding, birds, birdwatching, branch, chiffchaff, common, common chiffchaff, europe, flowers, green, insectivorous, leaves, light, migratory, nature, passeriformes, passerine, perching, phylloscopus, phylloscopus collybita, sing, singing, sitting, song, songbird, spring, springtime, tree, warbler, wild, wildlife, wood,