Now you can offer nectar to hummingbirds without the fear of artificial dyes with More Birds® Bird Health ™ Natural Red Powder Hummingbird Nectar Concentrate! The added carmine provides a natural red coloring without any artificial dyes or flavors. Simply mix one part powder concentrate with three parts warm water, then stir until completely dissolved–no boiling required. One 8 oz package of concentrate makes 40 oz of nectar. Our powder concentrate is a mess-free way to feed hummingbirds. Vitamins and calcium are added to promote successful egg hatching. More Bird's nectars are made from a blend of natural sugars found in flowers that birds feed from.