I've lost 3 guineas in the past week, and the problem is escalating. I see feathers, but my husband has already found bodies lacking heads. My hens are shut up at night in their houses. The peacocks nest on the barn roof. The guineas go to relatively low walls between stalls. Something is picking them off, one by one. I have alpacas roaming about freely too, so whatever it is , is gutsy or quiet. This is happening inside fences, so I don't think it could be dogs or foxes. I have seen opossums on a number of occasions, but never a raccoon or owl.