I found with my Amigo that his appetite changes with the seasons, don't ask me why, but when our grapes came to fruition he could not get enough of them. He doesn't like grapes from the market unless they are organic, it's amazing that even though they are washed he can tell the difference. If I offered him a grape right now, he wouldn't eat it. He's now into apples, if store bought they must be peeled. Bananas must be on the green side, offer him a ripe one and he looks at you like 'you're kidding me, right?' Amigo loves fresh corn but could never get him to eat greens. Because I free flight him, I've noticed that he will land on the ground now to enjoy the new sprouts of fresh grass popping up. Good luck with your friend, I believe fresh is best!