Starlings Stole My Bluebird's Food

Several days ago I mentioned the invasion of starlings. While it does not fix the problem entirely, I have discovered that using a bell feeder with the lid low does seem to deter them a bit. However the biggest deterrent is for me to stand at the window and scare them off anytime they come by. They are more easily frightened than the bluebirds. This is a video of my experience, very disheartening.