I believe they are illegal in Illinois, as any kind of feeding station is banned---doesn't matter if you are hunting over it or not.

But even if it was legal, I still think I would prefer to wander around the woods and find sheds. I would think that if a buck was coming into a feeder during the winter, that would be removed shortly after that where you found his sheds wouldn't give you a true reading as to where he may actually be living6 months from then. I plan to shed hunt every chance I get this winter. I want to find some good sheds, but my main goal is to put as much effort as I can into scouting my area. Just my theory on the matter though.