Ключевые слова: avian, backyard birds, biodiversity, bird, bird calls, bird diversity, bird species, birdsong, birdwatching, charming, chirping, ecological role, ecosystem, feathers, feeding behavior, flight, foraging, habitat, insectivorous, melodious, migration, migratory, natural habitat, nature, nesting, ornithological studies, ornithology, passerine, perching, perennial plants, plumage, shrubs, singing bird, small, small bird, songbird, songster, sparrowsized, tiny, vocal, vocalization, wildlife, wildlife conservation, woodland, wren,