When Should I Take Feeders Down?

I've heard that leaving sugar-water feeders up too long can interfere with the migration of hummingbirds. Is this true?

—Joy Ramer, Elwood, New Jersey

George:Don't worry about feeding hummingbirds, orioles or other birds too late in autumn. It's not food that determines when birds migrate, it's the amount of sunlight. In fact, it's a good idea to feed these birds as late as possible to give them a good nutritional start on their journey. Plus, the feeders may benefit migrating hummingbirds that pass through.