Portable bulk feed bins and gravity-fed deer feeders make feeding animals as easy as possible. Just simply load the portable grain bins up at the feed mill or barn then tow the animal feeder where you need to go. You can leave the portable bulk feed bin in the middle of nowhere if you want while keeping the feed accessible and protected from moisture and rodents. The grain door on the bottom allows you to fill buckets easily and quickly to load your gravity-fed deer feeder or bunk feeder. James Kota offers a variety of animal feeders for sale.