Lieva Hedgehog
The first inquiry I will entrust you with, will seem ... trivial, but that does not mean the repercussions will be.
Many breeder friends of mine are complaining about the disappearance of eggs from theirs birds' nests. If it were only two or three eggs per hen house, I would not be worried, but it is a matter of hundreds per day. So, either there are exceptionally sly foxes, or an organized network. Both hypotheses seem ridiculous, but I can't think of anything else.
So, go and investigate in inns, farms and markets, and come back to me to report on your findings.