It's getting late in the season. All of my hummingbirds are going to migrate back to Mexico soon. This summer I learned that hummingbirds are a lot more aggressive than one would imagine. There was a male that patrolled our feeder all season. He would attack any of his hungry hummingbird contemporaries the second they perched on "his" feeder for a drink. Oh, little birdy-helicopters. I'm going to miss you guys.