As far as i could tell from your picture, that track does NOT have claw marks, plus the two middle toes sit a little ahead...I would have to say a Bobcat...maybe a panther, but I don't think so...use a little caution from now on and try to identify its "scratch post"
Wildcats here in Kentucky tend to cover up thier kills(as opposed to the panter protecting thiers),sometimes only a single branch is used , you can pretty much be sure on it being a bobcat, if evidece of attempting to hide the food is found.
Also the bobcat scattends to containmore evidence of small game as apposed to the panther's scat which is made up of almost entire deer hair.
Try finding more evidence.
If you collect a good scat sample be sure to collect it in a brown bag so fungi does not sit in as quick...get it to your local biologist asap, if you are that interested.