Mine take a few introductions to decide whether they like things. Just like toddlers! They are wild for diced up cherry tomatoes from the garden. They also LOVE a serving of their starter feed mixed with plain yogurt. We've tried broccoli, cucumber, banana, and grapes but only once. Need to retry those things. I've introduced dried mealworms a bunch. They do NOT like those. Banana they didn't like the feel of on their beaks - kept cleaning off their beaks. Funny!