Does Food Coloring Hurt Hummingbirds - Web introduction the use of red food coloring in hummingbird nectar has been a subject of controversy within the birding community. Web the red dye commonly used in nectar for backyard feeders is harmful to hummingbirds.
Web the red dye commonly used in nectar for backyard feeders is harmful to hummingbirds. Web introduction the use of red food coloring in hummingbird nectar has been a subject of controversy within the birding community.