There was a paper from an Austrailan Agricultural department (or something like that ) taht looked at what attracted corvids to food.
It seems that the chemical smell they go for is in most rotting stuff and also in stinky cheese.
I have conducted a couple of experiments aong thes elines with stilton rind - the local magpies arrive within ten minutes, even if I've not seen them for days. They then beging to squabble and fight over tiny bits of cheese rind.
As Vultures are important for removing dead meat from the environment it's very likely they don't give a toss about human or other animal - it's gone off and therefore ripe enough to eat.