I’m only basing what I said, on being a sheep farmer. Had a few problem foxes, in fact have one at the moment, but there’s a size limit on what they will tackle when it’s up and healthy.
Tend to find bigger lambs are either the work of Billy, Dogs, or People.
Not saying it couldn’t happen, but I often find Charlie gets blamed for clearing up sick or dead stock etc.
Those lambs would be Over 20kg which when wriggling and fighting for its life is a fair thing to hold onto.