The RSPB has challenged the shooting community to take action against the unlawful killing of wild birds.
Last year there were 69 reports of wild bird crime in the east of England, the second highest in the UK, and 18 in Norfolk - the highest in the region.
Public outrage grew when Stody Estate-employee Allen Lambert was found guilty of killing 11 birds of prey and possession of pesticides capable of being used to prepare poison baits.
John Sharpe, RSPB conservation manager for the east, said the region was lucky enough to see buzzards, marsh harriers and hen harriers soaring across the countryside.
He said: 'Unfortunately, we are being robbed of the chance to see these beautiful birds flourish because of illegal persecution.'
He said the charity challenged the shooting community to acknowledge that illegal persecution was a problem within the industry and that a change of attitude was needed to make a consign bird of prey persecution to the history books.
Mr Lambert is due to be sentenced on November 6.
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