Hummingbird Spinoffs?

Our summer visitors -- the hummingbirds -- are busier that ever at the feeders, draining them by early afternoon. I suspect that their first hatchlings are now a-wing, thus the increased demand.
Hummers are noisy,  contentious little critters, especially the males who spend at least three-quarters of their energy running others off. It's hard to watch their buzzing, swooping air battles without being reminded of the tie fighters in Star Wars. Were the creators of these highly maneuverable...