I can’t speak for everywhere in the South, but our coyotes are finicky eaters. I kill a pile of hogs and drag them off. They’ll rot in place a lot of times. Buzzards clean up about half to three quarters, but the rest just decay over time.
Same with deer. We found one in one of the ponds and sent the head off for testing and during the rest to the field. Nothing touched it. Found a couple old bucks that ended up rotting in place.
I’ve taken a beaver carcasses out there and again, nothing but buzzards would touch them.
I’m guessing with our mild winters and plentiful prey species they don’t hit them. Now this is just on the properties I trap. I know some folks that say they can shoot a deer and if they don’t find it within 30-45 minutes after the shot the coyotes will have already found it and partially eaten. Of course none of these folks want them trapped or night hunted.