A charity could be the target of attacks by pro-hunt supporters.
Hunt activists are being told to step up protests against the Horsham-based RSPCA and concentrate on board members and executive officers.
The call is on a new web site set up by hard-liners Real Country Action (RCA).
The charity has played a leading role in the anti-hunt campaign which has angered many hunt supporters.
The decision to target the charity is expected to cause problems for high ranking members of the hunting community, who are trying to keep extreme activities by groups like RCA under control.
The charity is well respected throughout the country and attacking it could damage the pro-hunt cause.
A spokeswoman for the RSPCA said the hunt ban was going to go ahead and anyone who broke the law would have to face the consequences.
Some RSPCA supporters want to drop the Queen as its patron because of the Royal Familys support for fox-hunting.
They want the 'Royal' title removed from its name, making it the Society for the Prevention of Cruelty to Animals.
However, the charity said it has no plans to remove the 'R' from its acronym.
The royals are known for their love of fox-hunting, with Prince Charles announcing his intention to carry on with the sport until it is is made illegal.
Princess Anne and daughter Zara Phillips are also keen hunt supporters.
Three years ago, RSPCA council member Angela Walder said having the Queen as patron of the RSPCA was "like the NSPCC having a paedophile as its patron".
Buckingham Palace said the Queen would continue to support the charity.
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