Whatever killed it and fed on in it the first place, crows would clean off any remaining scraps, or birds of prey such as buzzards for example. I don't know if you have red kites in that area, they're scavengers.Hope you weren't going to have roast lamb for Sunday dinner
humans are equally good eating..
No, but in the early Victoriuan days of hill walking quite a number of 'explorers' lost their lives in Cader Idris.Invariably when found there was a limb missing.
Werewolf or velociraptor.