lcwmt
Songster
Normally, cats kill one at a time and eat it, if still hungry might come back... They are not a pack animal and don't leave the kind of carnage seen here. This is the work of large dogs, probably within 5 miles of you, or if you are in an area where camping is nearby, perhaps from a campsite. The tracks left are clearly from very large dog, probably weighing at least 100lbs.
In our neck of the woods, bobcats and mountain lions will take their kill up a tree or into the rocky areas. They do not eat at the site of the kill.