Treats, such a sugar cane sticks, should be kept refrigerated so they last longer.
Things to Consider:
Nuts – Nuts are a favorite treat for parrots. When shopping for nuts, you should look for nuts that include almonds still in the shell, Pine nuts, and Brazil nuts.
Legumes – Legumes are an excellent treat for parrots and a great source of protein.
Encourage Talking – If your breed of parrot "talks," you should try using his favorite treat to encourage him to talk.