What should I do about this bully hummingbird?

So we have two hummingbird feeders and we changed one of them like 3 times yesterday, because there's an asshole hummingbird who decided to make himself a roost on one of the feeders. He's not even drinking from it, he's sitting on top of it, and every time another hummingbird tries to come near it, he chases them off. So they're all cluttering the other feeder. I don't understand why they don't just gang up on him.

What should I do about this bully hummingbird?
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