Goodbye Summer Birds

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.