Bird Watching: Hummingbird Help, 1 by MichaelZ

MichaelZ wrote:
1 cup tap water to 1/3 cup regular old sugar. Stir it well Some suggest boiling and letting it cool. I usually do that because it makes me feel good. No food coloring. No brown sugar. Some also suggest only 1/4 cup sugar. It is a good idea to wash the feeder on a regular basis because they do get moldy.

That has been my practice for years. I have happy hummers all year long. We have Anna hummers that hang out during the winter and demand that I keep the feeders filled.