The Mammal Society in Britain issues a statement opposing the badger cull. Here is a link to their full statement. Here is the society’s conclusion:

The Mammal Society believes that the Government’s proposal is a roll-out of predetermined policy: it is not a controlled, randomised, replicated experiment (as would be required to demonstrate reliably the effects of badger culling). The Government undertook such an experiment – the RBCT – and has chosen to ignore the advice of the eminent scientists of the ISG who ran it. The Mammal Society regrets this.