Glenda from Chelsea, Ok writes
Per the manufacturer of Perky Pet Hummingbird Instant Nectar Concentrate 5.3 oz. (231), there is no conclusive evidence that the food coloring dye is harmful to hummingbirds. In fact, the dye used is dry and USDA approved. For further concerns, we suggest you contact the manufactur at 855.737.5973.
Answer last updated on: 05/04/2018
