One this afternoon/late morning. Mostly intact. Another ~a week ago torn to shreds.
I don't like this. Also, this seems like a cat thing as I'd expect most animals would kill and then piss off will all of their pray, instead of leaving corpses lying around...
Also, their mostly deer mice.
This definitely sounds like a cat, but it's also not unusual to just find dead animals outside. I wouldn't be worried so long as it's not like odd in some other way