Sugar Water
To make nectar for hummingbirds, add one part sugar to four parts boiling water and stir. A slightly more diluted mixture can be used for orioles (one part sugar to six parts water). Allow the mixture to cool before filling the feeder. Do not add red food coloring, as this is harmful to birds. Red portals on the feeder, or even a red ribbon tied on top, will attract the birds just as well.