food motivation

So Kelma and Gummigoo are picky eaters. They enjoy seeds, and pellets, but wont eat veggies or fruits. Correct me if I'm wrong but the following foods I know not to ever give them: Garlic, onion, avocado, anything with salt, anything with sugar/excessive sugar (unless it is fruit it's fine but...

So I own two tiels. One of my birds, skittles, is extremely non-food motivated, I can even show him a sunflower like just right in front of his face. I’ve had him for about a year or two and he’s bonded to me and when we first got him he was food motivated and learned step up and even flew to me...