They’ll eat fruit flies, mosquitoes, even spiders from webs. They feed their young by regurgitation at first, but as the chicks get older they’ll bring back small insects for them to eat. Leaving fruit near your feeding station may attract fruit flies for them. There is even a specialized feeder that is designed to attract both fruit flies and hummingbirds. If you notice fewer hummingbirds during the breeding season, don’t worry~ they’re probably bringing insects back to their youngsters.