Why did my hummingbirds leave? For that matter, when do you take down hummingbird feeders? This guide will tell you when to stop feeding hummingbirds, including signs of hummingbird migration to look for when deciding. These hummingbird feeding tips will help you make the best call for when to remove hummingbird feeders based on when the hummingbirds leave to migrate south in your area. You'll also find out how to keep hummingbird feeder from freezing and how you should store it over winter.