Royal Wing Black Fly Larvae for Wild Birds is a fun way to attract insect-eating birds to your feeding habitat. Fed daily, this feed provides nourishing nutrients that supplement their daily food intake, and it helps support healthier eggs and feathers in backyard birds. The high protein snack for wild birds ensures your backyard friends will look and feel healthy, and the fly larvae for wild birds is the ideal snack for chickadees, nuthatches, titmice, bluebirds, towhees, wrens, woodpeckers, robins, catbirds, thrashers, warblers, blue jays and cardinals. Non-GMO and free of preservatives. Includes 16 oz. of product.