We have Anna's Hummingbirds (similar to the Ruby Throated Hummingbird) in the midwest and east. Swarming our feeder in Lebec daily. There must be a hundred humming birds in the area as the neighbors have them swarming their feeders as well.
Shot with a small still camera with video function the camera had trouble focusing as the moving birds kept affecting the focus it finally settled on the background. These little birds empty the feeder in a few hours. They are something to watch enjoy even if you cannot use it on the air.