. Bulletin of the British Ornithologists Club. t ttvv 10 8 6 4^ 2. .1 .2 .5 sec Figure 1. Audiospectrograms of songs of a male Anomalospiza imberbis at Lochinvar National Park, Zambia, a, b, short song; c, long song with Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Ornithologists Club. Oxford : Clarendon Press

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