Bugs! Anything that moves, including spiders. We have these "wood bugs" here that roll up into a perfect ball when threatened and they have an armour-like shell. It's hilarious to watch Maxx try to figure it out! She also loves tuna and cheddar cheese. If I open a can of tuna, she comes running and meowing from anywhere in the house! She also likes salad dressing, but that is a rare treat.