Righto, first post - hi everyone!!

So, I have huge male, neutred moggie called Merlin. He's a lovely boy. But he is particularly good at catching birds and mice and bringing them home to "examine further" shall we say.

It's especially bad at this time of year, and the bigger the better with him, his favourite to bring home is pigeons. Sometimes they're dead on arrival and he just wants to eat it or leave it to be found by one of us, sometimes they're alive and he wants to play with it, sometimes looking more like he's conducting some sort of scientific experiment with it.

Anyways, it's gotten worse since we had a cat flap put in because he can now come and go as he wishes and he just brings whatever through the flap. Now, i know you can't stop a cat from going off to catch things, it's in their nature. He has a collar with a bell on it but this doesn't seem to help. Is there anything we can do to stop him catching things in the first place? would extra bells help? is there any collars which emit sound or something when he starts running about? THe only thing i can think of is when we go out to lock the cat flap so once he goes out he can't go back in and to keep it locked on an out only setting so he can't bring anything back in the house.

Oh and he's a heavy thing too and he gets fed regularly and all but still does this.

We had a particularly nasty incident last night when we found one of his well hidden 'conquests' and it'd been there quite a while...eww.

Thank you for the advice in advance.