Ключевые слова: animal, ants, beak, bird, bird box, birdbox, birdhouse, blue tit, box, breeding, brood, caeruleus, cyanistes, death, decay, ecology, eggs, family, fauna, feather, feeding, fledge, fledgeling, food, forest, garden, habitat, home, house, incubation, juvenile, life, life cycle, moss, nature, nest, nest box, nestbox, nestling, ornithology, park, parus, passerine, scavenger, season, songbird, tit, titmouse, tree, urban, wildlife, wood, young, young one, zoology,