When you say 'can't,' you mean 'aren't.'
---------- Post added 04-06-2017 at 09:21 ----------
I would change the law to give them the same provision as pheasants. Legally speaking, I am entitled to shoot a pheasant on my own land. I'd never shoot a cat myself but if there was the possibility, the people who let them roam around murdering all the local frogs would maybe think twice about what was 'natural' for the Felix-filled-wildlife-disasters called Tiddles...