ZuPreem AvianMaintenance Natural Diets are formulated for the various species of adult psittacines (hookbills) and passerines (softbills).? Nutritionally complete, contains fresh carrots, celery, beets, watercress and spinach.? No colorants ideal for those wanting to feed a more natural diet.? Available in a variety of nugget sizes for different species.? Packaged in a reclosable, stand-up pouch for freshness and convenience.