Bites on back legs sound like dogs. Neighbor a few years ago had 17 Boer Goats killed in one night. I caught one of the pit bulls in a snare the next night.
Agree with this one. Had some sort of animals just attack the goats and most weren't even eaten. Wild animals usually at least attempt to eat them or take them off, unless they get interrupted.
Feral dogs on the other hand go into pack and hunt mode, don't eat most anything just rip and shred the back ends to part and eventually kill the animals. Leaving the bodies strewn everywhere with very little sign of predation, just dead and wounded animals.
Especially sounds like the pit bull that packed up. Don't know of any other animal that would try to take on a pyrenees and win, unless it was a pack of feral of dogs.