The hummingbirds that have taken year-round residence, here in Southern Cal. don't seem to be particular about color, where they find their nectar. Most of our feeders are clear glass with no red dye in the sugar water, and they are drained quickly! A large ARBUTUS unedo has white "Lily of the Valley" type flowers that is covered with hummers at Christmas. It seems any nectar flower, especially tubular is visited by our little guys. Aloes of any color are very desirable, when in bloom. I guess when your hungry, color doesn't matter. Terry Hernstrom Director, Gardens & Grounds Kimberly Crest House & Gardens Redlands, CA (where the fall bulbs are blooming or coming out of dormancy, Lycoris radiata, especially beautiful this year.)