The Countryside Alliance has launched a scathing attack on the new director-general of the RSPCA for pulling the charity towards "animal rights militancy".
In its monthly newsletter to its 102,000 members, the organisation criticised Jackie Ballard for her outspoken anti-hunting views.
"Over the past year, the RSPCA has been far less concerned with animal welfare and instead has focused on active political lobbying," said Nigel Davenport, the director of the Countryside Alliance's campaign for shooting.
The RSPCA defended its position by pointing out that it spends 86p of every pound raised on its animal welfare programmes.
"The Countryside Alliance has resorted to a personal attack because it's losing the anti-hunting campaign," said a spokesperson for the RSPCA.