ZuPreem AvianBreeder Natural Diets are enriched to support the reproduction stages of psittacines (hookbills), and are ideal for those wanting to feed a more natural diet. Increased levels of protein, fat and calcium aids in keeping breeding stock in prime breeding condition and contributes to optimum production of offspring Nutritionally balanced and fortified with essential vitamins and minerals No artificial preservatives Available in 40 lb unit sizes for Cockatiels and Parrots & Conures pellet sizes.