Michelle, My whole males also drop a lot of weight when they are in season. I always figured it was because they become so single minded and hyper. All mine want to do is run around the house, "cruisin' for babes".(G) One got terribly thin last year and I was really worried about him. This year I feed him "duck soup" made with ground up Totally Ferret ferret food, Sustical, Linatone and Science Diet canned kitten food. He loves it and he kept on the weight. Cindy [Posted in FML issue 0907]