We live in the country and have (amongst various pets) 4 cats. One cat is old (19!), and can't be doing with anything other than eating and sleeping. Other cats are 1, 2 and 3, all from rescue and unfortunately they are all prolific hunters.
Today we were woken up by a frantic blackbird (who we managed to save, although it was badly injured 
). I intercepted our big male cat this morning, as he belted in with a young rabbit in his mouth (saved bunny, but fatally injured ). The youngest cat has, this evening, been caught in the hallway with half a large rabbit ).
Last sunday we had 1 partially peeled mouse, 1 dead shrew in dd's slippers (only discovered when she put them on 
) and 3 and a half rabbits. I'm not sure how they get the bigger rabbits through the cat flap!
So, i don't want to shut them in. I have tried bells on collars before (when our old boy was young, he was a hunter too) and they did not work. Does anyone have any ideas? Am i being unrealistic in thinking we can stop them decimating the local wildlife?