Ключевые слова: africa, african, animal, bird, black, blackheaded, branch, captive, cucullatus, fauna, green, leaf, male, nature, one, ornithology, park, passerines, perching, perchingbird, ploceidae, singing, singingbird, single, song, songbird, sparrow, textor, tree, village, weaver, wild, wildlife, wilhelma, yellow, zoo,