We await the arrival of the hummingbirds each spring, tracking their migration to know when to put out the feeders. We have only the Ruby-throated Hummingbird in our area although the occasional Rufous is seen now and then.
By August, our feeders are constantly in use. And they are constantly guarded with many fights over the nectar. It is not uncommon to watch for several minutes and notice that no one gets any food; they are too busy defending and fighting off the other birds. They twirl up together like helicopters and occasionally one will fall to the ground or hit the side of the house.
Don't even think of feeding here!
Who's going to stop me?
Yeah, you and who else?
Soon three birds are in the fray.
This happens over and over again all through August and September. One would think they would be more interested in saving their energy for the long flight soon to come.