Do hummingbirds drink alcohol? More often than you think: Flowers, backyard feeders likely provide hummingbirds with alcohol, thanks to fermenting yeast

Animals that eat fruit or sip nectar often ingest alcohol because naturally occurring yeasts turning sugar into ethanol. But how do animals feel about that? A new study details an experiment to determine whether hummingbirds are turned off by alcohol in sugar water. At 1% by volume, no. At 2% by vol...