Ключевые слова: animal, beak, bird, bird box, bird house, birdhouse, birds, birdwatching, blue bird, blue tit, bluetit, branch, brood, caeruleus, chick, city, copyspace, cyanistes, cyanistes caeruleus, environment, faecal, family, feather, feathers, fecal, feeder, fledge, fledged, fledgeling, fledging, flight, forest, garden, garden bird, garden feeder, great tit, habitat, incubation, isolated, mating, moss, nature, nest, nest box, nestbox, nestling, ornithology, outdoors, parus, parus caeruleus, passerine, plumage, poo, sac, sack, sitting, song bird, songbird, sparrow, spring, suet, tit, titmouse, tomtit, town, tree, urban wildlife, wild, wildlife, wing, woodland,