It is a normal thing for any ferret to dig their food. I have two that constantly dig their food out. But I noticed the less in the bowl the less likely they are to dig. My blind one isn't even one of the diggers. But anyhow. This is from an article out of the 2008 Ferrets USA Magazine: "I suspect ferrets dig in their food dish simply because they are programmed to dig for food. The digging results in a lot of wasted food if the ferret owner fills the food dish to the top. I think it is the nature of a food digger to dig, so I don't try to stop it. Instead, I try to prevent as much waste as possible. I place a small dish of food into a larger empty dish or try, or I limit the amount of food poured into the food container." [Posted in FML 5972]