 Bees, wasps, and ants are attracted to the sugar-water and may crawl into the feeder, where they may become trapped and drown.Orioles, woodpeckers, bananaquits, raccoons and other larger animals are known to drink from hummingbird feeders, sometimes tipping them and draining the liquid.In the southwestern United States, two species of nectar-drinking bats ("Leptonycteris yerbabuenae" and "Choeronycteris mexicana") visit hummingbird feeders to supplement their natural diet of nectar and pollen from saguaro cacti and agaves.