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【How-to】How do you keep bees away from hummingbird feeders
A: In hot weather, the feeder should be emptied and cleaned twice per week. … If your hummingbirds empty the feeder with greater frequency, clean it every time it’s empty. Cleaning with hot tap water works fine, or use a weak vinegar solution. Avoid using dish soaps, as this can leave harmful residue in the feeder.