Put both foods in a container, so the ferret food will have the smell of the kitten food. They go by the smell of the food. Start with a small amount of ferret food and gradually increase the ferret food. I had a situation like yours and this worked with him. Phyllis and the Wigglies: Generosity, Grace and Joey (Joy) In Loving Memory: Faith, Hope, Constance, Charrity and Bandit [Posted in FML issue 4565]