Ключевые слова: agility, animal, avian, barn swallow, beak, bird, breed, brood, caught, chick, countryside, cup shape, diurnal, eggs, environment, europe, european, fleetness, flight, flyer, flying, forked tail, hirundinidae, hirundo rustica, hunter, insect, insectivorous, italy, latium, migratory, mud, natural, natures, nest, nimble, ornithologist, ornithology, passerine, plumage, recalls, red face, rome, roof, rufous forehead, small, socialization, songbird, swallow, widespread, wild, wildlife, wings, zoology,