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Ingredients
Use one part white table sugar to four parts water. Increase the proportion to one part sugar to three parts water in wet or cool weather, when the hummingbirds require more calories, according to the Cornell Lab of Ornithology.
Making the Nectar
Mix the sugar and water in a pot large enough to hold the mixture. Bring it to a boil to kill any bacteria. Cool the nectar before placing it in the feeder. Store any leftover nectar in the refrigerator, where it will keep for up to two weeks.
Expert Insight
Never use honey to make hummingbird food. The Cornell Lab of Ornithology warns that bacteria and fungi can grow in honey added to water. Do not add red food coloring, which could harm the birds, the lab advises.