My wife just glanced over at the photo and asked what it was. I told her it was a feeder and she asked if you filled it from the roof. She also thought it was a full size room and that the hopper was the size of a large heating duct.
Oh, the feeder is much smaller than I thought. There wasn't much in the pic for size reference so I thought I was looking at a good portion of a 7' tall room...