I have seen timed feeders go off and within the hour turkey and deer have swarmed to the area. They hear it and come a running. Deer need different nutrients to achieve the correct health and fat content to get them through the winter. That is why they may be at a cornfield one day and at soybean or alfalfa the next. I would leave the feeder. Maybe try something else in it, such as sweetfeed. It would probably be a mixture of corn, oats, molasses, etc.