I have a friend w/ 7 cats and he provides 'em w/ “kittie teevee”-- has a cage full of mice and a large tank of goldfish. 6 of 'em hang out and watch these critters for a good part of the day, the 7th is an outdoor killer. So maybe more toys & eye candy?Indoor/outdoor catgrass & nip? I should point out that the 7th is The Dominant Female: SHE is the one who has to hunt, to the extent that one of the very submissive males is only permitted to being live earthworms into the house.
One solution to prevent animal pieces all over the house - eliminate the cat door. Let her in and out when she wants, but if you leave the house she is either inside or outside, whichever it happens to be at that moment. Then you might get “surprises” on the doorstep, but not inside. It’s a partial fix…
http://www.massey.ac.nz/~i75202/lecture3/docs/hrdy.htm
"…the murder of baby monkeys by adult male monkeys was routine. Every time a male takes over a troop of females, he kills all the infants in the group. Exactly the same phenomenon was also discovered in lions a short time later: when a group of brothers wins a pride of females, the first thing they do is slaughter the innocents. In fact, as subsequent research revealed, infanticide by males is common in rodents, carnivores and primates. Even our closest relatives, the chimpanzees, are guilty. "
Lots of male animals do that sort of thing. I found it shocking at first, but it makes sense if ya think about it the right way.
For cats that like to hunt a lot, we play hunting games with them inside. We just Hide their food & they have to hunt for it. They love doing this, I guess…
If you do opt to make her an indoor-only kitty, you could always build a “kitty run” so that she gets the feeling of being outside without having access to other critters.
I suspect that if my cat went outdoors, I would have much the same problem–he definitely has the hunter/predator action down pat.
Here’s a web page from some folks with the same problem. They solved it the geeeky high-tech way, by wiring a comuter with a camera and image-recognition software to the cat door, so it won’t open if she has a kill in her mouth.