We give ours frozen peas in the summer just dump them in their water ( change the water first so they can see them better. We don't usually cook corn for any of our birds just peel back the leaves and toss them in the pen. We have given them minnows and goldfish, they love to chase them and dive for them in the pool. Ours love multi-grain Cheerios as a treat too. If you have a Walmart near by some sell live bait much more fun than dried mealworms. Watermelon cut in half and let them have at it Lol