ROFL! Hummers are such little clowns (Wonder if that's why they are so brightly colored?) :)
Has your hummer chased any of the other birds? They do that here on occasion, and it's hilarious to watch a bigger bird try to outmaneuver such a small flying machine that can literally turn on a dime!
During the dry spells, I have to make sure the birdbath stays full of clean drinking water for the other birds. Otherwise, they start trying to drink out of the hummer feeders, too.
I am home for lunch, and this hummer, I'm presuming the vigilent sentinel, has now moved over to a spot near the window and is continuously scoping out the eaves above. You can tell he's just waiting on a challenger...well, looking for an opportunity is more like it. What's funny is that his back's to the feeders. At one point he turned around and saw another hummer who'd been happily feeding away, having esxaped notice. Of course, this guy would have none of that and swiftly dispatched the intruder.