I always used broadcast feeders and the one in the picture to attract deer not to feed them. They have plenty of natural feed. I did discover that if you mix C'ERE DEER in the corn the bucks would come to my feeders during the day when without it they only fed at night.
Minerals are a big draw this time of year. The bucks need them to grow their antlers and the does need them to help replace what is lost while they are nursing.