when should i take down my hummingbird feeder

The best time to take down a hummingbird feeder is about one to two weeks after you have seen the last hummingbird visit the feeder. You can keep the feeder out as long as hummingbirds are still around, including late migrants or occasional species that show up into early winter. This allows late stragglers to feed before migrating. It is important to keep the feeders clean and discard any unused nectar when taking them down. In some warmer areas, such as southern states, feeders can be kept year-round because some hummingbirds may overwinter there. However, generally, waiting about two weeks after the last sighting is a good rule of thumb for most locations.