It’s cracked corn, a cheap bait to put out if you are interested in photographing wildlife along a game trail. Cheap and tasty for deer or turkey, doves or coons, though turkey prefer black oil sunflower, which is a little more expensive.
Some people just put it out as a matter of curiosity, to get pictures to see what is frequenting a given trail. Others do it to accustom animals to travel a certain route in order to “cheat” - in some states it is legal to hunt over bait, in others you may have to stop baiting in the season but of course the animals are still used to travel to the spot... others don’t allow it at all. Missouri is usually a feed plot state rather than a bait state or at least it was in my area... you wouldn’t put out feed directly but might plant an area in some type of forage like turnips or wild plants that would entice deer or other game- not just to improve hunting success but to keep them from feeding on your vegetable garden. Most of the people I knew just studied the deer trails and looked for where deer liked to leave scent and rub their antlers and didn’t try to lure deer since they already knew where the deer bedded down or did this or that from long observation.
Thanks! I learned something new.