CAT! !
No fox, yote or ariel predator is going to scatter remains about the yard, nor stop to feed there........yet leave guts & a leg.
Only a feral cat fits here. A feral dog would have left nothing, but a large & hungry feral cat can eat the majority of a rabbit kill. Cat will then go off someplace to sleep & not need another kill for a couple days.
You may also find the head someplace about the yard.