I had a coon coming into the guinea hen coop every night to steal their food. I never close the door to that coop, I probably should but with the roosts over 7' high, it doesn't seem like there is much that can get to them. Anyway, I started to make sure to empty the feeder at night. After 3 days of that, the coon stole the entire 5 gallon bucket w/ lid that I had the feed in - it was about 1/3 full. Never did find that bucket and lid...