I found one almost as big as a basketball under one of mine,it was laying half in the koi pond and had a good food/water supply! They are a different color than regular sweet potatoes. The burgundy colored ones have a dark red potato. Good to see you posting again.we have been missing your wisdom and wise words on here! How are the rabbits doing this fall? I had a litter of eight born last week. They were just cross breeds and will go into the freezer.