My two cats ( male and female both spayed ) are bringing in on average 3 things A DAY- rats , mice , lizards , birds and half a garden snake !!!! Their favourite at the moment being live rats , and huge ones !! The girl , is the worst for it at the moment , just casually dumping it on my lounge floor with it to run under the sofa . 4 am this morning she brings on into my bedroom !!! We do live near a field and there's a stream running through the garden also have chickens so it's no mystery where they gets them from but how do I stop this ?? I have a cat flap but think it's unfair to lock them up in the winter or bad weather . It's driving is mad !!