Attracts cardinals, chickadees, grosbeaks, sparrows, finches, titmice, and more. Supports bird health. NutriThrive: Advanced nutrition. Immunity. Reproduction. Energy. Added vitamins & minerals. Attracts a greater variety of birds than standard blends. Enriched with vitamins and minerals to support: Reproduction: With calcium, vitamin E and amino acids. Immunity: With omega-3 fatty acids, zinc, and Vitamin A. Energy: metabolic support with riboflavin and biotin. audubonpark.com. Made in the USA.