My cat, the bird and mouse killing bastard

[Pyjamagame]

What to do, if anything? Catboy has stopped eating his breakfast here. He turns up in the morning but can barely raise a meow and walks away in disgust if offered biscuits or wet food. This is in contrast to normal when he usually has his claws in the back of your leg the minute the door opens and practically bites your hand off when you're putting the food in his bowl. He's instead helping himself to the large selection of wildlife hereabouts. This morning he was munching a mouse on the bedroom floor and five am and now he's on the patio chewing the head off a baby bird. I'm fed up with having wet food hanging about for the flies and ants to get at, but how do I get him eating what we give him and not working his way through the garden menu?

Have you tried switching up the kind of food you give him? I know some cats are sensitive to their food being changed but mine are the opposite- they're always far more keen on anything new.

What food are you giving him?

Desertcat is a would-be murderer of the countryside. We have kept this to a minimum by him being in overnight and having a grain-free diet.

Animonda Carny is very popular in this house.

We do switch his food around, but mostly until the last few weeks, he's always dived nose first into his bowl every morning like he's starving. I can't imagine trying to keep him in at night. He starts scratching the furniture when he wants to go out and can be quite destructive. He's had a collage with a bell before but will not tolerate it and shreds it until he falls off. I'm just not sure how to change his appetite so he's hungry in the morning. I'm fighting Mother Nature here I think.

collage? collar....