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Hear what happened as Peter and Peggy's four chicks received their tracking tags, in a special ceremony at Worcester Cathedral, recording them on a national database.

Our reporter Sophie Millward was there as the chicks, on the verge of fleeing the nest, had the rings added to their feet. Stuart and Jessica from the British Trust for Ornithology reveal how the tags will help monitor the travels of the chicks and then as they grow up, all around the country!