Tagging a marsh harrier chick
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Sculthorpe marsh harriers tagged to track migration

25 June 2012 Last updated at 14:59 BST

Marsh harrier chicks have been ringed and wing-tagged at a Norfolk nature reserve as part of a five-year project by the Hawk and Owl Trust to track their migration.

The bird has made a remarkable comeback after it almost disappeared from East Anglia.