Ключевые слова: aves, beak, bird, branch, brown, buildings, bush, city, claws, closeup, cute, domesticus, environment, feather, flock, freedom, garden, grey, group, nature, ornithology, passer, perched, plumage, pose, residential, shrub, small, songbird, sparrow, spring, symbol of belgrade, tail, tree, twig, urban, wild, wildlife, wing,