The Southwest Virginia Wildlife Center of Roanoke gave these tips for hummingbird feeders: 🌷Clean feeders every 3-5 days with a mixture of 1 part bleach to 10 parts water (dirty feeders can develop a fungus) 🌷Water to sugar ratio is 1/4 cup of sugar to 1 cup of boiling water, cooling before feeding 🌷Don’t use dyes, honey, molasses, or raw sugar 🌷Avoid placing the feeder in direct sunlight #ThisIsVirginia