Should Britain, re-introduce more Animals to the country?

Gt bustards have been released on Salisbury Plain and beavers in Scotland.I believe there are plans to introduce wolves up there as well.You have to be carefull with this ,lots of intro .species have caused problems.Rabbits in Australia ate all the gr so the sheep starved.Coypu on the Norfolk Broads burrow in the riverbanks causing the flood defences to break down.