Is it 'The Birds'?!

We've gone a little overboard with the hummingbird feeders - we now have 3 big ones and 2 little ones. But the hummers are so much fun to watch - even if our deck sometimes resembles a scene from The Birds. Hummers are very territorial, and we have several different species all vying for the feeders. The Rufous hummers are the most aggressive - there's one guy who managed to fend off all the other hummers for several hours. The black-chinned and broad-tailed varieties, which we also have, aren't quite so fierce, but I've been wondering what would happen if I got between them and the feeders!