From my past experiences with putting out corn all that ever came to my area were does. I think the bucks are smarter than this and may visit your corn but not till well after dark. As far as using corn ethical or not. Ted Nugent quoted that we dont go fishing without using any type of lure, the woods are my lake and i need all the help i can get to get them to bite . ( somethin to that effect) It really gave me a positive way of looking at it.