Thanks for the confirmation - we don't get to see much mange around here - except for when the 'charities' have been visiting. I spoke to a farmer who rents some ground on the same farm earlier today - he said that a fox had calmly walked out in front of him as he drove in yesterday. He said that no country fox would have acted in the way the one he saw did, so it backs up my belief these had been dumped.
It's a shame that a class action couldn't be brought by a number of our organisations working together - say, the NFU, BASC and the NGO, to prosecute those concerned. I'm sure that enough evidence could be gathered if there was the will. I know several farmers who've caught people in vans/trucks with caged foxes inside, so it wouldn't take long...