Substitutions of any kind kill. Good white sugar and water only. I use 4 to 1. I have a few that winter over so I use 3 to 1 for winter months. I shine a light on the feeder to keep it from freezing. I adore my hummers. Would never substitute and kill them.
Agree with MCW. I have herd of other people asking about substituting white cane sugar in hummingbird feeders and many people say don't do it. Someone asked about using sugar substitutes like Sweet and Low. Others have asked about using honey. The answer is always the same... stick to normal sugar and water at a 1 cup sugar to 4 cups water ratio.
Brown sugar contains molasses, whereas white sugar doesn't. I would stick with white sugar only.
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