The battle of the birds

We hung our hummingbird feeder out this last weekend, and never have we had so many birds feeding from it. I've been working outside and hanging out laundry in the nice weather, and have been dive-bombed by all the birds fighting over the feeder. I am sure there are at least four males constantly chirping and shooing the others away. Obviously the others are getting some time in at the feeder though because it was empty this morning and needed to be filled again. I hope the birds stick around for the summer and don't kill each other over the feeder this spring.