Food Coloring Hummingbirds - Web nectar in flowers is clear, after all, and red food coloring may be harmful for hummingbirds. Web 1 cup of white cane sugar 4 cups of spring water directions & tips dissolve the sugar in the water. Web the use of red food coloring in hummingbird nectar has been a subject of controversy within the birding community.
Web 1 cup of white cane sugar 4 cups of spring water directions & tips dissolve the sugar in the water. Web nectar in flowers is clear, after all, and red food coloring may be harmful for hummingbirds. Web the use of red food coloring in hummingbird nectar has been a subject of controversy within the birding community.