It's easier than you think: stop putting out that nasty red-dye nectar that costs too much and actually harms the hummers.
The best way to feed a hummingbird is with nectar you make yourself, and that's also easier than you think. Add one part refined white sugar to four parts water. Done. No red dye.
Southeastern Avian Research has more to tell you about hummingbirds. Ex: Here in Tennessee, it is quite possible to have hummers visiting your feeder all year long.