Find out when to take down hummingbird feeders, or if you can leave them up in winter, according to an expert. Bob Stefko Summer has ended and with it, peak hummingbird feeding season. So exactly when should you take down your hummingbird feeder and bring it in for the winter? The answer depends on where you live.Hummingbirds migrate to warmer climates for the winter as temperatures fall. But some...