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Cuckoos
Cuckoos are one of a small group of parasitic birds that covertly use other birds to unknowingly rear chicks on their behalf. Lionel Kelleway heads to Dartmoor to get close to a juvenile cuckoo and its unwitting foster parents.
Last on
Sun 16 Aug 2009
06:35
Βι¶ΉΤΌΕΔ Radio 4